Merge remote-tracking branch 'qatar/master'

* qatar/master: (40 commits)
  swf: check return values for av_get/new_packet().
  wavpack: Don't shift minclip/maxclip
  rtpenc: Expose the max packet size via an avoption
  rtpenc: Move max_packet_size to a context variable
  rtpenc: Add an option for not sending RTCP packets
  lavc: drop encode() support for video.
  snowenc: switch to encode2().
  snowenc: don't abuse input picture for storing information.
  a64multienc: switch to encode2().
  a64multienc: don't write into output buffer when there's no output.
  libxvid: switch to encode2().
  tiffenc: switch to encode2().
  tiffenc: properly forward error codes in encode_frame().
  lavc: drop libdirac encoder.
  gifenc: switch to encode2().
  libvpxenc: switch to encode2().
  flashsvenc: switch to encode2().
  Remove libpostproc.
  lcl: don't overwrite input memory.
  swscale: take first/lastline over/underflows into account for MMX.
  ...

Conflicts:
	.gitignore
	Makefile
	cmdutils.c
	configure
	doc/APIchanges
	libavcodec/Makefile
	libavcodec/allcodecs.c
	libavcodec/libdiracenc.c
	libavcodec/libxvidff.c
	libavcodec/qtrleenc.c
	libavcodec/tiffenc.c
	libavcodec/utils.c
	libavformat/mov.c
	libavformat/movenc.c
	libpostproc/Makefile
	libpostproc/postprocess.c
	libpostproc/postprocess.h
	libpostproc/postprocess_altivec_template.c
	libpostproc/postprocess_internal.h
	libpostproc/postprocess_template.c
	libswscale/swscale.c
	libswscale/utils.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>

29 files changed, 499 insertions, 709 deletions

diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 0b144c8635..f46708368f 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -603,7 +603,7 @@ OBJS-$(CONFIG_MATROSKA_MUXER)          += xiph.o mpeg4audio.o \
                                           flacdec.o flacdata.o flac.o \
                                           mpegaudiodata.o vorbis_data.o
 OBJS-$(CONFIG_MP3_MUXER)               += mpegaudiodata.o mpegaudiodecheader.o
-OBJS-$(CONFIG_MOV_DEMUXER)             += mpeg4audio.o mpegaudiodata.o timecode.o
+OBJS-$(CONFIG_MOV_DEMUXER)             += mpeg4audio.o mpegaudiodata.o ac3tab.o timecode.o
 OBJS-$(CONFIG_MOV_MUXER)               += mpeg4audio.o mpegaudiodata.o
 OBJS-$(CONFIG_MPEGTS_MUXER)            += mpegvideo.o mpeg4audio.o
 OBJS-$(CONFIG_MPEGTS_DEMUXER)          += mpeg4audio.o mpegaudiodata.o
@@ -624,7 +624,6 @@ OBJS-$(CONFIG_WTV_DEMUXER)             += mpeg4audio.o mpegaudiodata.o
 OBJS-$(CONFIG_LIBAACPLUS_ENCODER)         += libaacplus.o
 OBJS-$(CONFIG_LIBCELT_DECODER)            += libcelt_dec.o
 OBJS-$(CONFIG_LIBDIRAC_DECODER)           += libdiracdec.o
-OBJS-$(CONFIG_LIBDIRAC_ENCODER)           += libdiracenc.o libdirac_libschro.o
 OBJS-$(CONFIG_LIBFAAC_ENCODER)            += libfaac.o
 OBJS-$(CONFIG_LIBGSM_DECODER)             += libgsm.o
 OBJS-$(CONFIG_LIBGSM_ENCODER)             += libgsm.o
diff --git a/libavcodec/a64enc.h b/libavcodec/a64enc.h
index fb559ba82b..4868461f40 100644
--- a/libavcodec/a64enc.h
+++ b/libavcodec/a64enc.h
@@ -50,6 +50,9 @@ typedef struct A64Context {
     uint8_t *mc_colram;
     uint8_t *mc_palette;
     int mc_pal_size;
+
+    /* pts of the next packet that will be output */
+    int64_t next_pts;
 } A64Context;
 
 #endif /* AVCODEC_A64ENC_H */
diff --git a/libavcodec/a64multienc.c b/libavcodec/a64multienc.c
index 5a665d0592..ed8dde552c 100644
--- a/libavcodec/a64multienc.c
+++ b/libavcodec/a64multienc.c
@@ -28,6 +28,7 @@
 #include "a64colors.h"
 #include "a64tables.h"
 #include "elbg.h"
+#include "internal.h"
 #include "libavutil/intreadwrite.h"
 
 #define DITHERSTEPS   8
@@ -221,6 +222,8 @@ static av_cold int a64multi_init_encoder(AVCodecContext *avctx)
     if (!avctx->codec_tag)
          avctx->codec_tag = AV_RL32("a64m");
 
+    c->next_pts = AV_NOPTS_VALUE;
+
     return 0;
 }
 
@@ -239,11 +242,10 @@ static void a64_compress_colram(unsigned char *buf, int *charmap, uint8_t *colra
     }
 }
 
-static int a64multi_encode_frame(AVCodecContext *avctx, unsigned char *buf,
-                                 int buf_size, void *data)
+static int a64multi_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
+                                 const AVFrame *pict, int *got_packet)
 {
     A64Context *c = avctx->priv_data;
-    AVFrame *pict = data;
     AVFrame *const p = (AVFrame *) & c->picture;
 
     int frame;
@@ -251,7 +253,8 @@ static int a64multi_encode_frame(AVCodecContext *avctx, unsigned char *buf,
     int b_height;
     int b_width;
 
-    int req_size;
+    int req_size, ret;
+    uint8_t *buf;
 
     int *charmap     = c->mc_charmap;
     uint8_t *colram  = c->mc_colram;
@@ -274,7 +277,7 @@ static int a64multi_encode_frame(AVCodecContext *avctx, unsigned char *buf,
     }
 
     /* no data, means end encoding asap */
-    if (!data) {
+    if (!pict) {
         /* all done, end encoding */
         if (!c->mc_lifetime) return 0;
         /* no more frames in queue, prepare to flush remaining frames */
@@ -292,6 +295,8 @@ static int a64multi_encode_frame(AVCodecContext *avctx, unsigned char *buf,
             p->key_frame = 1;
             to_meta_with_crop(avctx, p, meta + 32000 * c->mc_frame_counter);
             c->mc_frame_counter++;
+            if (c->next_pts == AV_NOPTS_VALUE)
+                c->next_pts = pict->pts;
             /* lifetime is not reached so wait for next frame first */
             return 0;
         }
@@ -302,6 +307,13 @@ static int a64multi_encode_frame(AVCodecContext *avctx, unsigned char *buf,
         req_size = 0;
         /* any frames to encode? */
         if (c->mc_lifetime) {
+            req_size = charset_size + c->mc_lifetime*(screen_size + colram_size);
+            if ((ret = ff_alloc_packet(pkt, req_size)) < 0) {
+                av_log(avctx, AV_LOG_ERROR, "Error getting output packet of size %d.\n", req_size);
+                return ret;
+            }
+            buf = pkt->data;
+
             /* calc optimal new charset + charmaps */
             ff_init_elbg(meta, 32, 1000 * c->mc_lifetime, best_cb, CHARSET_CHARS, 50, charmap, &c->randctx);
             ff_do_elbg  (meta, 32, 1000 * c->mc_lifetime, best_cb, CHARSET_CHARS, 50, charmap, &c->randctx);
@@ -310,15 +322,12 @@ static int a64multi_encode_frame(AVCodecContext *avctx, unsigned char *buf,
             render_charset(avctx, charset, colram);
 
             /* copy charset to buf */
-            memcpy(buf,charset, charset_size);
+            memcpy(buf, charset, charset_size);
 
             /* advance pointers */
             buf      += charset_size;
             charset  += charset_size;
-            req_size += charset_size;
         }
-        /* no charset so clean buf */
-        else memset(buf, 0, charset_size);
 
         /* write x frames to buf */
         for (frame = 0; frame < c->mc_lifetime; frame++) {
@@ -351,11 +360,12 @@ static int a64multi_encode_frame(AVCodecContext *avctx, unsigned char *buf,
         /* reset counter */
         c->mc_frame_counter = 0;
 
-        if (req_size > buf_size) {
-            av_log(avctx, AV_LOG_ERROR, "buf size too small (need %d, got %d)\n", req_size, buf_size);
-            return -1;
-        }
-        return req_size;
+        pkt->pts = pkt->dts = c->next_pts;
+        c->next_pts         = AV_NOPTS_VALUE;
+
+        pkt->size   = req_size;
+        pkt->flags |= AV_PKT_FLAG_KEY;
+        *got_packet = !!req_size;
     }
     return 0;
 }
@@ -366,7 +376,7 @@ AVCodec ff_a64multi_encoder = {
     .id             = CODEC_ID_A64_MULTI,
     .priv_data_size = sizeof(A64Context),
     .init           = a64multi_init_encoder,
-    .encode         = a64multi_encode_frame,
+    .encode2        = a64multi_encode_frame,
     .close          = a64multi_close_encoder,
     .pix_fmts       = (const enum PixelFormat[]) {PIX_FMT_GRAY8, PIX_FMT_NONE},
     .long_name      = NULL_IF_CONFIG_SMALL("Multicolor charset for Commodore 64"),
@@ -379,7 +389,7 @@ AVCodec ff_a64multi5_encoder = {
     .id             = CODEC_ID_A64_MULTI5,
     .priv_data_size = sizeof(A64Context),
     .init           = a64multi_init_encoder,
-    .encode         = a64multi_encode_frame,
+    .encode2        = a64multi_encode_frame,
     .close          = a64multi_close_encoder,
     .pix_fmts       = (const enum PixelFormat[]) {PIX_FMT_GRAY8, PIX_FMT_NONE},
     .long_name      = NULL_IF_CONFIG_SMALL("Multicolor charset for Commodore 64, extended with 5th color (colram)"),
diff --git a/libavcodec/ac3_parser.c b/libavcodec/ac3_parser.c
index 14ca196aaf..83cc4e0e36 100644
--- a/libavcodec/ac3_parser.c
+++ b/libavcodec/ac3_parser.c
@@ -134,7 +134,7 @@ int avpriv_ac3_parse_header(GetBitContext *gbc, AC3HeaderInfo *hdr)
                         (hdr->num_blocks * 256.0));
         hdr->channels = ff_ac3_channels_tab[hdr->channel_mode] + hdr->lfe_on;
     }
-    hdr->channel_layout = ff_ac3_channel_layout_tab[hdr->channel_mode];
+    hdr->channel_layout = avpriv_ac3_channel_layout_tab[hdr->channel_mode];
     if (hdr->lfe_on)
         hdr->channel_layout |= AV_CH_LOW_FREQUENCY;
 
diff --git a/libavcodec/ac3dec.c b/libavcodec/ac3dec.c
index be17efb24d..31891b5807 100644
--- a/libavcodec/ac3dec.c
+++ b/libavcodec/ac3dec.c
@@ -1378,7 +1378,7 @@ static int ac3_decode_frame(AVCodecContext * avctx, void *data,
                 avctx->request_channels < s->channels) {
             s->out_channels = avctx->request_channels;
             s->output_mode  = avctx->request_channels == 1 ? AC3_CHMODE_MONO : AC3_CHMODE_STEREO;
-            s->channel_layout = ff_ac3_channel_layout_tab[s->output_mode];
+            s->channel_layout = avpriv_ac3_channel_layout_tab[s->output_mode];
         }
         avctx->channels       = s->out_channels;
         avctx->channel_layout = s->channel_layout;
diff --git a/libavcodec/ac3tab.c b/libavcodec/ac3tab.c
index 3b3e715655..ccf04ec016 100644
--- a/libavcodec/ac3tab.c
+++ b/libavcodec/ac3tab.c
@@ -84,7 +84,7 @@ const uint8_t ff_ac3_channels_tab[8] = {
 /**
  * Map audio coding mode (acmod) to channel layout mask.
  */
-const uint16_t ff_ac3_channel_layout_tab[8] = {
+const uint16_t avpriv_ac3_channel_layout_tab[8] = {
     AV_CH_LAYOUT_STEREO,
     AV_CH_LAYOUT_MONO,
     AV_CH_LAYOUT_STEREO,
diff --git a/libavcodec/ac3tab.h b/libavcodec/ac3tab.h
index aa13c8f6e5..d6e0eed86a 100644
--- a/libavcodec/ac3tab.h
+++ b/libavcodec/ac3tab.h
@@ -33,7 +33,7 @@
 
 extern const uint16_t ff_ac3_frame_size_tab[38][3];
 extern const uint8_t  ff_ac3_channels_tab[8];
-extern const uint16_t ff_ac3_channel_layout_tab[8];
+extern const uint16_t avpriv_ac3_channel_layout_tab[8];
 extern const uint8_t  ff_ac3_enc_channel_map[8][2][6];
 extern const uint8_t  ff_ac3_dec_channel_map[8][2][6];
 extern const uint16_t ff_ac3_sample_rate_tab[3];
diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
index ef9a5ae52b..18121ba808 100644
--- a/libavcodec/allcodecs.c
+++ b/libavcodec/allcodecs.c
@@ -400,7 +400,7 @@ void avcodec_register_all(void)
     /* external libraries */
     REGISTER_ENCODER (LIBAACPLUS, libaacplus);
     REGISTER_DECODER (LIBCELT, libcelt);
-    REGISTER_ENCDEC  (LIBDIRAC, libdirac);
+    REGISTER_DECODER (LIBDIRAC, libdirac);
     REGISTER_ENCODER (LIBFAAC, libfaac);
     REGISTER_ENCDEC  (LIBGSM, libgsm);
     REGISTER_ENCDEC  (LIBGSM_MS, libgsm_ms);
diff --git a/libavcodec/asv1.c b/libavcodec/asv1.c
index 563c92c335..4bcc8d72b1 100644
--- a/libavcodec/asv1.c
+++ b/libavcodec/asv1.c
@@ -325,10 +325,12 @@ static inline int decode_mb(ASV1Context *a, DCTELEM block[6][64]){
     return 0;
 }
 
+#define MAX_MB_SIZE (30*16*16*3/2/8)
+
 static inline int encode_mb(ASV1Context *a, DCTELEM block[6][64]){
     int i;
 
-    if(a->pb.buf_end - a->pb.buf - (put_bits_count(&a->pb)>>3) < 30*16*16*3/2/8){
+    if (a->pb.buf_end - a->pb.buf - (put_bits_count(&a->pb)>>3) < MAX_MB_SIZE) {
         av_log(a->avctx, AV_LOG_ERROR, "encoded frame too large\n");
         return -1;
     }
@@ -461,14 +463,22 @@ static int decode_frame(AVCodecContext *avctx,
 }
 
 #if CONFIG_ASV1_ENCODER || CONFIG_ASV2_ENCODER
-static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data){
+static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
+                        const AVFrame *pict, int *got_packet)
+{
     ASV1Context * const a = avctx->priv_data;
-    AVFrame *pict = data;
     AVFrame * const p= &a->picture;
-    int size;
+    int size, ret;
     int mb_x, mb_y;
 
-    init_put_bits(&a->pb, buf, buf_size);
+    if (!pkt->data &&
+        (ret = av_new_packet(pkt, a->mb_height*a->mb_width*MAX_MB_SIZE +
+                                  FF_MIN_BUFFER_SIZE)) < 0) {
+        av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
+        return ret;
+    }
+
+    init_put_bits(&a->pb, pkt->data, pkt->size);
 
     *p = *pict;
     p->pict_type= AV_PICTURE_TYPE_I;
@@ -505,14 +515,18 @@ static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size,
     size= put_bits_count(&a->pb)/32;
 
     if(avctx->codec_id == CODEC_ID_ASV1)
-        a->dsp.bswap_buf((uint32_t*)buf, (uint32_t*)buf, size);
+        a->dsp.bswap_buf((uint32_t*)pkt->data, (uint32_t*)pkt->data, size);
     else{
         int i;
         for(i=0; i<4*size; i++)
-            buf[i]= av_reverse[ buf[i] ];
+            pkt->data[i] = av_reverse[pkt->data[i]];
     }
 
-    return size*4;
+    pkt->size   = size*4;
+    pkt->flags |= AV_PKT_FLAG_KEY;
+    *got_packet = 1;
+
+    return 0;
 }
 #endif /* CONFIG_ASV1_ENCODER || CONFIG_ASV2_ENCODER */
 
@@ -634,7 +648,7 @@ AVCodec ff_asv1_encoder = {
     .id             = CODEC_ID_ASV1,
     .priv_data_size = sizeof(ASV1Context),
     .init           = encode_init,
-    .encode         = encode_frame,
+    .encode2        = encode_frame,
     //encode_end,
     .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
     .long_name= NULL_IF_CONFIG_SMALL("ASUS V1"),
@@ -648,7 +662,7 @@ AVCodec ff_asv2_encoder = {
     .id             = CODEC_ID_ASV2,
     .priv_data_size = sizeof(ASV1Context),
     .init           = encode_init,
-    .encode         = encode_frame,
+    .encode2        = encode_frame,
     //encode_end,
     .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
     .long_name= NULL_IF_CONFIG_SMALL("ASUS V2"),
diff --git a/libavcodec/ffv1.c b/libavcodec/ffv1.c
index 1535c5e462..4c0ea4517e 100644
--- a/libavcodec/ffv1.c
+++ b/libavcodec/ffv1.c
@@ -1135,17 +1135,25 @@ static int encode_slice(AVCodecContext *c, void *arg){
     return 0;
 }
 
-static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data){
+static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
+                        const AVFrame *pict, int *got_packet)
+{
     FFV1Context *f = avctx->priv_data;
     RangeCoder * const c= &f->slice_context[0]->c;
-    AVFrame *pict = data;
     AVFrame * const p= &f->picture;
     int used_count= 0;
     uint8_t keystate=128;
     uint8_t *buf_p;
-    int i;
+    int i, ret;
+
+    if (!pkt->data &&
+        (ret = av_new_packet(pkt, avctx->width*avctx->height*((8*2+1+1)*4)/8
+                                  + FF_MIN_BUFFER_SIZE)) < 0) {
+        av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
+        return ret;
+    }
 
-    ff_init_range_encoder(c, buf, buf_size);
+    ff_init_range_encoder(c, pkt->data, pkt->size);
     ff_build_rac_states(c, 0.05*(1LL<<32), 256-8);
 
     *p = *pict;
@@ -1165,7 +1173,7 @@ static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size,
     if(!f->ac){
         used_count += ff_rac_terminate(c);
 //printf("pos=%d\n", used_count);
-        init_put_bits(&f->slice_context[0]->pb, buf + used_count, buf_size - used_count);
+        init_put_bits(&f->slice_context[0]->pb, pkt->data + used_count, pkt->size - used_count);
     }else if (f->ac>1){
         int i;
         for(i=1; i<256; i++){
@@ -1176,8 +1184,8 @@ static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size,
 
     for(i=1; i<f->slice_count; i++){
         FFV1Context *fs= f->slice_context[i];
-        uint8_t *start= buf + (buf_size-used_count)*i/f->slice_count;
-        int len= buf_size/f->slice_count;
+        uint8_t *start = pkt->data + (pkt->size-used_count)*i/f->slice_count;
+        int len = pkt->size/f->slice_count;
 
         if(fs->ac){
             ff_init_range_encoder(&fs->c, start, len);
@@ -1187,7 +1195,7 @@ static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size,
     }
     avctx->execute(avctx, encode_slice, &f->slice_context[0], NULL, f->slice_count, sizeof(void*));
 
-    buf_p=buf;
+    buf_p = pkt->data;
     for(i=0; i<f->slice_count; i++){
         FFV1Context *fs= f->slice_context[i];
         int bytes;
@@ -1202,7 +1210,7 @@ static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size,
             used_count= 0;
         }
         if(i>0){
-            av_assert0(bytes < buf_size/f->slice_count);
+            av_assert0(bytes < pkt->size/f->slice_count);
             memmove(buf_p, fs->ac ? fs->c.bytestream_start : fs->pb.buf, bytes);
             av_assert0(bytes < (1<<24));
             AV_WB24(buf_p+bytes, bytes);
@@ -1255,7 +1263,11 @@ static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size,
         avctx->stats_out[0] = '\0';
 
     f->picture_number++;
-    return buf_p-buf;
+    pkt->size   = buf_p - pkt->data;
+    pkt->flags |= AV_PKT_FLAG_KEY*p->key_frame;
+    *got_packet = 1;
+
+    return 0;
 }
 #endif /* CONFIG_FFV1_ENCODER */
 
@@ -1843,7 +1855,7 @@ AVCodec ff_ffv1_encoder = {
     .id             = CODEC_ID_FFV1,
     .priv_data_size = sizeof(FFV1Context),
     .init           = encode_init,
-    .encode         = encode_frame,
+    .encode2        = encode_frame,
     .close          = common_end,
     .capabilities = CODEC_CAP_SLICE_THREADS,
     .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_YUVA420P, PIX_FMT_YUV444P, PIX_FMT_YUVA444P, PIX_FMT_YUV440P, PIX_FMT_YUV422P, PIX_FMT_YUV411P, PIX_FMT_YUV410P, PIX_FMT_0RGB32, PIX_FMT_RGB32, PIX_FMT_YUV420P16, PIX_FMT_YUV422P16, PIX_FMT_YUV444P16, PIX_FMT_YUV420P9, PIX_FMT_YUV420P10, PIX_FMT_YUV422P10, PIX_FMT_GRAY16, PIX_FMT_GRAY8, PIX_FMT_NONE},
diff --git a/libavcodec/flacdec.c b/libavcodec/flacdec.c
index dc6bcaab57..87e53edce6 100644
--- a/libavcodec/flacdec.c
+++ b/libavcodec/flacdec.c
@@ -33,6 +33,7 @@
 
 #include <limits.h>
 
+#include "libavutil/audioconvert.h"
 #include "libavutil/crc.h"
 #include "avcodec.h"
 #include "internal.h"
@@ -62,6 +63,15 @@ typedef struct FLACContext {
     int32_t *decoded[FLAC_MAX_CHANNELS];    ///< decoded samples
 } FLACContext;
 
+static const int64_t flac_channel_layouts[6] = {
+    AV_CH_LAYOUT_MONO,
+    AV_CH_LAYOUT_STEREO,
+    AV_CH_LAYOUT_SURROUND,
+    AV_CH_LAYOUT_QUAD,
+    AV_CH_LAYOUT_5POINT0,
+    AV_CH_LAYOUT_5POINT1
+};
+
 static void allocate_buffers(FLACContext *s);
 
 int avpriv_flac_is_extradata_valid(AVCodecContext *avctx,
@@ -120,6 +130,9 @@ static av_cold int flac_decode_init(AVCodecContext *avctx)
     avcodec_get_frame_defaults(&s->frame);
     avctx->coded_frame = &s->frame;
 
+    if (avctx->channels <= FF_ARRAY_ELEMS(flac_channel_layouts))
+        avctx->channel_layout = flac_channel_layouts[avctx->channels - 1];
+
     return 0;
 }
 
diff --git a/libavcodec/flashsvenc.c b/libavcodec/flashsvenc.c
index 77290e866f..f5b3015fbf 100644
--- a/libavcodec/flashsvenc.c
+++ b/libavcodec/flashsvenc.c
@@ -49,6 +49,7 @@
 #include <zlib.h>
 
 #include "avcodec.h"
+#include "internal.h"
 #include "put_bits.h"
 #include "bytestream.h"
 
@@ -194,11 +195,10 @@ static int encode_bitstream(FlashSVContext *s, AVFrame *p, uint8_t *buf,
 }
 
 
-static int flashsv_encode_frame(AVCodecContext *avctx, uint8_t *buf,
-                                int buf_size, void *data)
+static int flashsv_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
+                                const AVFrame *pict, int *got_packet)
 {
     FlashSVContext * const s = avctx->priv_data;
-    AVFrame *pict = data;
     AVFrame * const p = &s->frame;
     uint8_t *pfptr;
     int res;
@@ -228,15 +228,15 @@ static int flashsv_encode_frame(AVCodecContext *avctx, uint8_t *buf,
         I_frame = 1;
     }
 
-    if (buf_size < s->image_width * s->image_height * 3) {
+    if ((res = ff_alloc_packet(pkt, s->image_width * s->image_height * 3)) < 0) {
         //Conservative upper bound check for compressed data
-        av_log(avctx, AV_LOG_ERROR, "buf_size %d <  %d\n",
-               buf_size, s->image_width * s->image_height * 3);
-        return -1;
+        av_log(avctx, AV_LOG_ERROR, "Error getting output packet of size %d.\n",
+               s->image_width * s->image_height * 3);
+        return res;
     }
 
-    res = encode_bitstream(s, p, buf, buf_size, opt_w * 16, opt_h * 16,
-                           pfptr, &I_frame);
+    pkt->size = encode_bitstream(s, p, pkt->data, pkt->size, opt_w * 16, opt_h * 16,
+                                 pfptr, &I_frame);
 
     //save the current frame
     if (p->linesize[0] > 0)
@@ -259,7 +259,11 @@ static int flashsv_encode_frame(AVCodecContext *avctx, uint8_t *buf,
 
     avctx->coded_frame = p;
 
-    return res;
+    if (p->key_frame)
+        pkt->flags |= AV_PKT_FLAG_KEY;
+    *got_packet = 1;
+
+    return 0;
 }
 
 static av_cold int flashsv_encode_end(AVCodecContext *avctx)
@@ -281,7 +285,7 @@ AVCodec ff_flashsv_encoder = {
     .id             = CODEC_ID_FLASHSV,
     .priv_data_size = sizeof(FlashSVContext),
     .init           = flashsv_encode_init,
-    .encode         = flashsv_encode_frame,
+    .encode2        = flashsv_encode_frame,
     .close          = flashsv_encode_end,
     .pix_fmts       = (const enum PixelFormat[]){PIX_FMT_BGR24, PIX_FMT_NONE},
     .long_name      = NULL_IF_CONFIG_SMALL("Flash Screen Video"),
diff --git a/libavcodec/gif.c b/libavcodec/gif.c
index 830a059422..875c5b15dc 100644
--- a/libavcodec/gif.c
+++ b/libavcodec/gif.c
@@ -43,6 +43,7 @@
 
 #include "avcodec.h"
 #include "bytestream.h"
+#include "internal.h"
 #include "lzw.h"
 
 /* The GIF format uses reversed order for bitstreams... */
@@ -155,20 +156,32 @@ static av_cold int gif_encode_init(AVCodecContext *avctx)
 }
 
 /* better than nothing gif encoder */
-static int gif_encode_frame(AVCodecContext *avctx, unsigned char *outbuf, int buf_size, void *data)
+static int gif_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
+                            const AVFrame *pict, int *got_packet)
 {
     GIFContext *s = avctx->priv_data;
-    AVFrame *pict = data;
     AVFrame *const p = (AVFrame *)&s->picture;
-    uint8_t *outbuf_ptr = outbuf;
-    uint8_t *end = outbuf + buf_size;
+    uint8_t *outbuf_ptr, *end;
+    int ret;
+
+    if ((ret = ff_alloc_packet(pkt, avctx->width*avctx->height*7/5 + FF_MIN_BUFFER_SIZE)) < 0) {
+        av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
+        return ret;
+    }
+    outbuf_ptr = pkt->data;
+    end        = pkt->data + pkt->size;
 
     *p = *pict;
     p->pict_type = AV_PICTURE_TYPE_I;
     p->key_frame = 1;
     gif_image_write_header(avctx, &outbuf_ptr, (uint32_t *)pict->data[1]);
     gif_image_write_image(avctx, &outbuf_ptr, end, pict->data[0], pict->linesize[0]);
-    return outbuf_ptr - outbuf;
+
+    pkt->size   = outbuf_ptr - pkt->data;
+    pkt->flags |= AV_PKT_FLAG_KEY;
+    *got_packet = 1;
+
+    return 0;
 }
 
 static int gif_encode_close(AVCodecContext *avctx)
@@ -186,7 +199,7 @@ AVCodec ff_gif_encoder = {
     .id             = CODEC_ID_GIF,
     .priv_data_size = sizeof(GIFContext),
     .init           = gif_encode_init,
-    .encode         = gif_encode_frame,
+    .encode2        = gif_encode_frame,
     .close          = gif_encode_close,
     .pix_fmts= (const enum PixelFormat[]){PIX_FMT_RGB8, PIX_FMT_BGR8, PIX_FMT_RGB4_BYTE, PIX_FMT_BGR4_BYTE, PIX_FMT_GRAY8, PIX_FMT_PAL8, PIX_FMT_NONE},
     .long_name= NULL_IF_CONFIG_SMALL("GIF (Graphics Interchange Format)"),
diff --git a/libavcodec/jpeglsenc.c b/libavcodec/jpeglsenc.c
index d72287b296..d5135adb30 100644
--- a/libavcodec/jpeglsenc.c
+++ b/libavcodec/jpeglsenc.c
@@ -28,6 +28,7 @@
 #include "avcodec.h"
 #include "get_bits.h"
 #include "golomb.h"
+#include "internal.h"
 #include "mathops.h"
 #include "dsputil.h"
 #include "mjpeg.h"
@@ -227,23 +228,19 @@ static void ls_store_lse(JLSState *state, PutBitContext *pb){
     put_bits(pb, 16, state->reset);
 }
 
-static int encode_picture_ls(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data){
+static int encode_picture_ls(AVCodecContext *avctx, AVPacket *pkt,
+                             const AVFrame *pict, int *got_packet)
+{
     JpeglsContext * const s = avctx->priv_data;
-    AVFrame *pict = data;
     AVFrame * const p= (AVFrame*)&s->picture;
     const int near = avctx->prediction_method;
     PutBitContext pb, pb2;
     GetBitContext gb;
     uint8_t *buf2, *zero, *cur, *last;
     JLSState *state;
-    int i, size;
+    int i, size, ret;
     int comps;
 
-    buf2 = av_malloc(buf_size);
-
-    init_put_bits(&pb, buf, buf_size);
-    init_put_bits(&pb2, buf2, buf_size);
-
     *p = *pict;
     p->pict_type= AV_PICTURE_TYPE_I;
     p->key_frame= 1;
@@ -253,6 +250,17 @@ static int encode_picture_ls(AVCodecContext *avctx, unsigned char *buf, int buf_
     else
         comps = 3;
 
+    if ((ret = ff_alloc_packet(pkt, avctx->width*avctx->height*comps*4 +
+                                    FF_MIN_BUFFER_SIZE)) < 0) {
+        av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
+        return ret;
+    }
+
+    buf2 = av_malloc(pkt->size);
+
+    init_put_bits(&pb, pkt->data, pkt->size);
+    init_put_bits(&pb2, buf2, pkt->size);
+
     /* write our own JPEG header, can't use mjpeg_picture_header */
     put_marker(&pb, SOI);
     put_marker(&pb, SOF48);
@@ -366,7 +374,10 @@ static int encode_picture_ls(AVCodecContext *avctx, unsigned char *buf, int buf_
 
     emms_c();
 
-    return put_bits_count(&pb) >> 3;
+    pkt->size   = put_bits_count(&pb) >> 3;
+    pkt->flags |= AV_PKT_FLAG_KEY;
+    *got_packet = 1;
+    return 0;
 }
 
 static av_cold int encode_init_ls(AVCodecContext *ctx) {
@@ -388,7 +399,7 @@ AVCodec ff_jpegls_encoder = { //FIXME avoid MPV_* lossless JPEG should not need
     .id             = CODEC_ID_JPEGLS,
     .priv_data_size = sizeof(JpeglsContext),
     .init           = encode_init_ls,
-    .encode         = encode_picture_ls,
+    .encode2        = encode_picture_ls,
     .pix_fmts       = (const enum PixelFormat[]){PIX_FMT_BGR24, PIX_FMT_RGB24, PIX_FMT_GRAY8, PIX_FMT_GRAY16, PIX_FMT_NONE},
     .long_name      = NULL_IF_CONFIG_SMALL("JPEG-LS"),
 };
diff --git a/libavcodec/lcldec.c b/libavcodec/lcldec.c
index 57b04f79f1..901d9421f4 100644
--- a/libavcodec/lcldec.c
+++ b/libavcodec/lcldec.c
@@ -242,9 +242,14 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac
          * gives a file with ZLIB fourcc, but frame is really uncompressed.
          * To be sure that's true check also frame size */
         if (c->compression == COMP_ZLIB_NORMAL && c->imgtype == IMGTYPE_RGB24 &&
-            len == width * height * 3)
-            break;
-        if (c->flags & FLAG_MULTITHREAD) {
+            len == width * height * 3) {
+            if (c->flags & FLAG_PNGFILTER) {
+                memcpy(c->decomp_buf, encoded, len);
+                encoded = c->decomp_buf;
+            } else {
+                break;
+            }
+        } else if (c->flags & FLAG_MULTITHREAD) {
             int ret;
             mthread_inlen = AV_RL32(encoded);
             mthread_inlen = FFMIN(mthread_inlen, len - 8);
diff --git a/libavcodec/lclenc.c b/libavcodec/lclenc.c
index 9f66960910..a656986da9 100644
--- a/libavcodec/lclenc.c
+++ b/libavcodec/lclenc.c
@@ -68,12 +68,20 @@ typedef struct LclEncContext {
  * Encode a frame
  *
  */
-static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data){
+static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
+                        const AVFrame *pict, int *got_packet)
+{
     LclEncContext *c = avctx->priv_data;
-    AVFrame *pict = data;
     AVFrame * const p = &c->pic;
-    int i;
+    int i, ret;
     int zret; // Zlib return code
+    int max_size = deflateBound(&c->zstream, avctx->width * avctx->height * 3);
+
+    if (!pkt->data &&
+        (ret = av_new_packet(pkt, max_size)) < 0) {
+            av_log(avctx, AV_LOG_ERROR, "Error allocating packet of size %d.\n", max_size);
+            return ret;
+    }
 
     *p = *pict;
     p->pict_type= AV_PICTURE_TYPE_I;
@@ -89,8 +97,8 @@ static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size,
         av_log(avctx, AV_LOG_ERROR, "Deflate reset error: %d\n", zret);
         return -1;
     }
-    c->zstream.next_out = buf;
-    c->zstream.avail_out = buf_size;
+    c->zstream.next_out  = pkt->data;
+    c->zstream.avail_out = pkt->size;
 
     for(i = avctx->height - 1; i >= 0; i--) {
         c->zstream.next_in = p->data[0]+p->linesize[0]*i;
@@ -107,7 +115,11 @@ static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size,
         return -1;
     }
 
-    return c->zstream.total_out;
+    pkt->size   = c->zstream.total_out;
+    pkt->flags |= AV_PKT_FLAG_KEY;
+    *got_packet = 1;
+
+    return 0;
 }
 
 /*
@@ -176,7 +188,7 @@ AVCodec ff_zlib_encoder = {
     .id             = CODEC_ID_ZLIB,
     .priv_data_size = sizeof(LclEncContext),
     .init           = encode_init,
-    .encode         = encode_frame,
+    .encode2        = encode_frame,
     .close          = encode_end,
     .pix_fmts = (const enum PixelFormat[]) { PIX_FMT_BGR24, PIX_FMT_NONE },
     .long_name = NULL_IF_CONFIG_SMALL("LCL (LossLess Codec Library) ZLIB"),
diff --git a/libavcodec/libdiracenc.c b/libavcodec/libdiracenc.c
deleted file mode 100644
index 385bce9018..0000000000
--- a/libavcodec/libdiracenc.c
+++ /dev/null
@@ -1,405 +0,0 @@
-/*
- * Dirac encoding support via libdirac library
- * Copyright (c) 2005 BBC, Andrew Kennedy <dirac at rd dot bbc dot co dot uk>
- * Copyright (c) 2006-2008 BBC, Anuradha Suraparaju <asuraparaju at gmail dot com >
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
-* @file
-* Dirac encoding support via libdirac library; more details about the
-* Dirac project can be found at http://dirac.sourceforge.net/.
-* The libdirac_encoder library implements Dirac specification version 2.2
-* (http://dirac.sourceforge.net/specification.html).
-*/
-
-#include "libdirac_libschro.h"
-#include "libdirac.h"
-
-#undef NDEBUG
-#include <assert.h>
-
-
-#include <libdirac_encoder/dirac_encoder.h>
-
-/** Dirac encoder private data */
-typedef struct DiracEncoderParams {
-    /** Dirac encoder context */
-    dirac_encoder_context_t enc_ctx;
-
-    /** frame being encoded */
-    AVFrame picture;
-
-    /** frame size */
-    int frame_size;
-
-    /** Dirac encoder handle */
-    dirac_encoder_t* p_encoder;
-
-    /** input frame buffer */
-    unsigned char *p_in_frame_buf;
-
-    /** buffer to store encoder output before writing it to the frame queue */
-    unsigned char *enc_buf;
-
-    /** size of encoder buffer */
-    int enc_buf_size;
-
-    /** queue storing encoded frames */
-    DiracSchroQueue enc_frame_queue;
-
-    /** end of sequence signalled by user, 0 - false, 1 - true */
-    int eos_signalled;
-
-    /** end of sequence returned by encoder, 0 - false, 1 - true */
-    int eos_pulled;
-} DiracEncoderParams;
-
-/**
-* Works out Dirac-compatible chroma format.
-*/
-static dirac_chroma_t GetDiracChromaFormat(enum PixelFormat ff_pix_fmt)
-{
-    int num_formats = sizeof(dirac_pixel_format_map) /
-                      sizeof(dirac_pixel_format_map[0]);
-    int idx;
-
-    for (idx = 0; idx < num_formats; ++idx)
-        if (dirac_pixel_format_map[idx].ff_pix_fmt == ff_pix_fmt)
-            return dirac_pixel_format_map[idx].dirac_pix_fmt;
-    return formatNK;
-}
-
-/**
-* Dirac video preset table. Ensure that this tables matches up correctly
-* with the ff_dirac_schro_video_format_info table in libdirac_libschro.c.
-*/
-static const VideoFormat ff_dirac_video_formats[]={
-    VIDEO_FORMAT_CUSTOM           ,
-    VIDEO_FORMAT_QSIF525          ,
-    VIDEO_FORMAT_QCIF             ,
-    VIDEO_FORMAT_SIF525           ,
-    VIDEO_FORMAT_CIF              ,
-    VIDEO_FORMAT_4SIF525          ,
-    VIDEO_FORMAT_4CIF             ,
-    VIDEO_FORMAT_SD_480I60        ,
-    VIDEO_FORMAT_SD_576I50        ,
-    VIDEO_FORMAT_HD_720P60        ,
-    VIDEO_FORMAT_HD_720P50        ,
-    VIDEO_FORMAT_HD_1080I60       ,
-    VIDEO_FORMAT_HD_1080I50       ,
-    VIDEO_FORMAT_HD_1080P60       ,
-    VIDEO_FORMAT_HD_1080P50       ,
-    VIDEO_FORMAT_DIGI_CINEMA_2K24 ,
-    VIDEO_FORMAT_DIGI_CINEMA_4K24 ,
-};
-
-/**
-* Returns the video format preset matching the input video dimensions and
-* time base.
-*/
-static VideoFormat GetDiracVideoFormatPreset(AVCodecContext *avccontext)
-{
-    unsigned int num_formats = sizeof(ff_dirac_video_formats) /
-                               sizeof(ff_dirac_video_formats[0]);
-
-    unsigned int idx = ff_dirac_schro_get_video_format_idx(avccontext);
-
-    return (idx < num_formats) ?
-                 ff_dirac_video_formats[idx] : VIDEO_FORMAT_CUSTOM;
-}
-
-static av_cold int libdirac_encode_init(AVCodecContext *avccontext)
-{
-
-    DiracEncoderParams* p_dirac_params = avccontext->priv_data;
-    int no_local = 1;
-    int verbose  = avccontext->debug;
-    VideoFormat preset;
-
-    /* get Dirac preset */
-    preset = GetDiracVideoFormatPreset(avccontext);
-
-    /* initialize the encoder context */
-    dirac_encoder_context_init(&p_dirac_params->enc_ctx, preset);
-
-    p_dirac_params->enc_ctx.src_params.chroma = GetDiracChromaFormat(avccontext->pix_fmt);
-
-    if (p_dirac_params->enc_ctx.src_params.chroma == formatNK) {
-        av_log(avccontext, AV_LOG_ERROR,
-               "Unsupported pixel format %d. This codec supports only "
-               "Planar YUV formats (yuv420p, yuv422p, yuv444p\n",
-               avccontext->pix_fmt);
-        return -1;
-    }
-
-    p_dirac_params->enc_ctx.src_params.frame_rate.numerator   = avccontext->time_base.den;
-    p_dirac_params->enc_ctx.src_params.frame_rate.denominator = avccontext->time_base.num;
-
-    p_dirac_params->enc_ctx.src_params.width  = avccontext->width;
-    p_dirac_params->enc_ctx.src_params.height = avccontext->height;
-
-    p_dirac_params->frame_size = avpicture_get_size(avccontext->pix_fmt,
-                                                    avccontext->width,
-                                                    avccontext->height);
-
-    avccontext->coded_frame = &p_dirac_params->picture;
-
-    if (no_local) {
-        p_dirac_params->enc_ctx.decode_flag = 0;
-        p_dirac_params->enc_ctx.instr_flag  = 0;
-    } else {
-        p_dirac_params->enc_ctx.decode_flag = 1;
-        p_dirac_params->enc_ctx.instr_flag  = 1;
-    }
-
-    /* Intra-only sequence */
-    if (!avccontext->gop_size) {
-        p_dirac_params->enc_ctx.enc_params.num_L1 = 0;
-        if (avccontext->coder_type == FF_CODER_TYPE_VLC)
-            p_dirac_params->enc_ctx.enc_params.using_ac = 0;
-    } else
-        avccontext->has_b_frames = 1;
-
-    if (avccontext->flags & CODEC_FLAG_QSCALE) {
-        if (avccontext->global_quality) {
-            p_dirac_params->enc_ctx.enc_params.qf = avccontext->global_quality
-                                                    / (FF_QP2LAMBDA * 10.0);
-            /* if it is not default bitrate then send target rate. */
-            if (avccontext->bit_rate >= 1000 &&
-                avccontext->bit_rate != 200000)
-                p_dirac_params->enc_ctx.enc_params.trate = avccontext->bit_rate
-                                                           / 1000;
-        } else
-            p_dirac_params->enc_ctx.enc_params.lossless = 1;
-    } else if (avccontext->bit_rate >= 1000)
-        p_dirac_params->enc_ctx.enc_params.trate = avccontext->bit_rate / 1000;
-
-    if ((preset > VIDEO_FORMAT_QCIF || preset < VIDEO_FORMAT_QSIF525) &&
-         avccontext->bit_rate == 200000)
-        p_dirac_params->enc_ctx.enc_params.trate = 0;
-
-    if (avccontext->flags & CODEC_FLAG_INTERLACED_ME)
-        /* all material can be coded as interlaced or progressive
-         * irrespective of the type of source material */
-        p_dirac_params->enc_ctx.enc_params.picture_coding_mode = 1;
-
-    p_dirac_params->p_encoder = dirac_encoder_init(&p_dirac_params->enc_ctx,
-                                                   verbose);
-
-    if (!p_dirac_params->p_encoder) {
-        av_log(avccontext, AV_LOG_ERROR,
-               "Unrecoverable Error: dirac_encoder_init failed. ");
-        return EXIT_FAILURE;
-    }
-
-    /* allocate enough memory for the incoming data */
-    p_dirac_params->p_in_frame_buf = av_malloc(p_dirac_params->frame_size);
-
-    /* initialize the encoded frame queue */
-    ff_dirac_schro_queue_init(&p_dirac_params->enc_frame_queue);
-
-    return 0;
-}
-
-static void DiracFreeFrame(void *data)
-{
-    DiracSchroEncodedFrame *enc_frame = data;
-
-    av_freep(&enc_frame->p_encbuf);
-    av_free(enc_frame);
-}
-
-static int libdirac_encode_frame(AVCodecContext *avccontext,
-                                 unsigned char *frame,
-                                 int buf_size, void *data)
-{
-    int enc_size = 0;
-    dirac_encoder_state_t state;
-    DiracEncoderParams     *p_dirac_params      = avccontext->priv_data;
-    DiracSchroEncodedFrame *p_frame_output      = NULL;
-    DiracSchroEncodedFrame *p_next_output_frame = NULL;
-    int go = 1;
-    int last_frame_in_sequence = 0;
-
-    if (!data) {
-        /* push end of sequence if not already signalled */
-        if (!p_dirac_params->eos_signalled) {
-            dirac_encoder_end_sequence(p_dirac_params->p_encoder);
-            p_dirac_params->eos_signalled = 1;
-        }
-    } else {
-
-        /* Allocate frame data to Dirac input buffer.
-         * Input line size may differ from what the codec supports,
-         * especially when transcoding from one format to another.
-         * So use avpicture_layout to copy the frame. */
-        avpicture_layout((AVPicture *)data, avccontext->pix_fmt,
-                         avccontext->width, avccontext->height,
-                         p_dirac_params->p_in_frame_buf,
-                         p_dirac_params->frame_size);
-
-        /* load next frame */
-        if (dirac_encoder_load(p_dirac_params->p_encoder,
-                               p_dirac_params->p_in_frame_buf,
-                               p_dirac_params->frame_size) < 0) {
-            av_log(avccontext, AV_LOG_ERROR, "Unrecoverable Encoder Error."
-                   " dirac_encoder_load failed...\n");
-            return -1;
-        }
-    }
-
-    if (p_dirac_params->eos_pulled)
-        go = 0;
-
-    while (go) {
-        p_dirac_params->p_encoder->enc_buf.buffer = frame;
-        p_dirac_params->p_encoder->enc_buf.size   = buf_size;
-        /* process frame */
-        state = dirac_encoder_output(p_dirac_params->p_encoder);
-
-        switch (state) {
-        case ENC_STATE_AVAIL:
-        case ENC_STATE_EOS:
-            assert(p_dirac_params->p_encoder->enc_buf.size > 0);
-
-            /* All non-frame data is prepended to actual frame data to
-             * be able to set the pts correctly. So we don't write data
-             * to the frame output queue until we actually have a frame
-             */
-
-            p_dirac_params->enc_buf = av_realloc(p_dirac_params->enc_buf,
-                                                 p_dirac_params->enc_buf_size +
-                                                 p_dirac_params->p_encoder->enc_buf.size);
-            memcpy(p_dirac_params->enc_buf + p_dirac_params->enc_buf_size,
-                   p_dirac_params->p_encoder->enc_buf.buffer,
-                   p_dirac_params->p_encoder->enc_buf.size);
-
-            p_dirac_params->enc_buf_size += p_dirac_params->p_encoder->enc_buf.size;
-
-            if (state == ENC_STATE_EOS) {
-                p_dirac_params->eos_pulled = 1;
-                go = 0;
-            }
-
-            /* If non-frame data, don't output it until it we get an
-             * encoded frame back from the encoder. */
-            if (p_dirac_params->p_encoder->enc_pparams.pnum == -1)
-                break;
-
-            /* create output frame */
-            p_frame_output = av_mallocz(sizeof(DiracSchroEncodedFrame));
-            /* set output data */
-            p_frame_output->size      = p_dirac_params->enc_buf_size;
-            p_frame_output->p_encbuf  = p_dirac_params->enc_buf;
-            p_frame_output->frame_num = p_dirac_params->p_encoder->enc_pparams.pnum;
-
-            if (p_dirac_params->p_encoder->enc_pparams.ptype == INTRA_PICTURE &&
-                p_dirac_params->p_encoder->enc_pparams.rtype == REFERENCE_PICTURE)
-                p_frame_output->key_frame = 1;
-
-            ff_dirac_schro_queue_push_back(&p_dirac_params->enc_frame_queue,
-                                           p_frame_output);
-
-            p_dirac_params->enc_buf_size = 0;
-            p_dirac_params->enc_buf      = NULL;
-            break;
-
-        case ENC_STATE_BUFFER:
-            go = 0;
-            break;
-
-        case ENC_STATE_INVALID:
-            av_log(avccontext, AV_LOG_ERROR,
-                   "Unrecoverable Dirac Encoder Error. Quitting...\n");
-            return -1;
-
-        default:
-            av_log(avccontext, AV_LOG_ERROR, "Unknown Dirac Encoder state\n");
-            return -1;
-        }
-    }
-
-    /* copy 'next' frame in queue */
-
-    if (p_dirac_params->enc_frame_queue.size == 1 && p_dirac_params->eos_pulled)
-        last_frame_in_sequence = 1;
-
-    p_next_output_frame = ff_dirac_schro_queue_pop(&p_dirac_params->enc_frame_queue);
-
-    if (!p_next_output_frame)
-        return 0;
-
-    memcpy(frame, p_next_output_frame->p_encbuf, p_next_output_frame->size);
-    avccontext->coded_frame->key_frame = p_next_output_frame->key_frame;
-    /* Use the frame number of the encoded frame as the pts. It is OK to do
-     * so since Dirac is a constant framerate codec. It expects input to be
-     * of constant framerate. */
-    avccontext->coded_frame->pts = p_next_output_frame->frame_num;
-    enc_size = p_next_output_frame->size;
-
-    /* Append the end of sequence information to the last frame in the
-     * sequence. */
-    if (last_frame_in_sequence && p_dirac_params->enc_buf_size > 0) {
-        memcpy(frame + enc_size, p_dirac_params->enc_buf,
-               p_dirac_params->enc_buf_size);
-        enc_size += p_dirac_params->enc_buf_size;
-        av_freep(&p_dirac_params->enc_buf);
-        p_dirac_params->enc_buf_size = 0;
-    }
-
-    /* free frame */
-    DiracFreeFrame(p_next_output_frame);
-
-    return enc_size;
-}
-
-static av_cold int libdirac_encode_close(AVCodecContext *avccontext)
-{
-    DiracEncoderParams *p_dirac_params = avccontext->priv_data;
-
-    /* close the encoder */
-    dirac_encoder_close(p_dirac_params->p_encoder);
-
-    /* free data in the output frame queue */
-    ff_dirac_schro_queue_free(&p_dirac_params->enc_frame_queue,
-                              DiracFreeFrame);
-
-    /* free the encoder buffer */
-    if (p_dirac_params->enc_buf_size)
-        av_freep(&p_dirac_params->enc_buf);
-
-    /* free the input frame buffer */
-    av_freep(&p_dirac_params->p_in_frame_buf);
-
-    return 0;
-}
-
-
-AVCodec ff_libdirac_encoder = {
-    .name           = "libdirac",
-    .type           = AVMEDIA_TYPE_VIDEO,
-    .id             = CODEC_ID_DIRAC,
-    .priv_data_size = sizeof(DiracEncoderParams),
-    .init           = libdirac_encode_init,
-    .encode         = libdirac_encode_frame,
-    .close          = libdirac_encode_close,
-   .capabilities = CODEC_CAP_DELAY,
-   .pix_fmts = (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_NONE},
-   .long_name = NULL_IF_CONFIG_SMALL("libdirac Dirac 2.2"),
-};
diff --git a/libavcodec/libschroedingerenc.c b/libavcodec/libschroedingerenc.c
index 27267cd0e9..02ffac77f7 100644
--- a/libavcodec/libschroedingerenc.c
+++ b/libavcodec/libschroedingerenc.c
@@ -35,6 +35,7 @@
 #include <schroedinger/schrovideoformat.h>
 
 #include "avcodec.h"
+#include "internal.h"
 #include "libdirac_libschro.h"
 #include "libschroedinger.h"
 #include "bytestream.h"
@@ -71,6 +72,9 @@ typedef struct SchroEncoderParams {
 
     /** end of sequence pulled */
     int eos_pulled;
+
+    /* counter for frames submitted to encoder, used as dts */
+    int64_t dts;
 } SchroEncoderParams;
 
 /**
@@ -175,6 +179,7 @@ static int libschroedinger_encode_init(AVCodecContext *avccontext)
         schro_encoder_setting_set_double(p_schro_params->encoder,
                                          "au_distance", avccontext->gop_size);
         avccontext->has_b_frames = 1;
+        p_schro_params->dts = -1;
     }
 
     /* FIXME - Need to handle SCHRO_ENCODER_RATE_CONTROL_LOW_DELAY. */
@@ -236,7 +241,7 @@ static int libschroedinger_encode_init(AVCodecContext *avccontext)
 }
 
 static SchroFrame *libschroedinger_frame_from_data(AVCodecContext *avccontext,
-                                                   void *in_data)
+                                                   const AVFrame *frame)
 {
     SchroEncoderParams *p_schro_params = avccontext->priv_data;
     SchroFrame *in_frame;
@@ -246,7 +251,7 @@ static SchroFrame *libschroedinger_frame_from_data(AVCodecContext *avccontext,
     in_frame = ff_create_schro_frame(avccontext, p_schro_params->frame_format);
 
     if (in_frame)
-        avpicture_layout((AVPicture *)in_data, avccontext->pix_fmt,
+        avpicture_layout((const AVPicture *)frame, avccontext->pix_fmt,
                           avccontext->width, avccontext->height,
                           in_frame->components[0].data,
                           p_schro_params->frame_size);
@@ -262,9 +267,8 @@ static void SchroedingerFreeFrame(void *data)
     av_free(enc_frame);
 }
 
-static int libschroedinger_encode_frame(AVCodecContext *avccontext,
-                                        unsigned char *frame,
-                                        int buf_size, void *data)
+static int libschroedinger_encode_frame(AVCodecContext *avccontext, AVPacket *pkt,
+                                        const AVFrame *frame, int *got_packet)
 {
     int enc_size = 0;
     SchroEncoderParams *p_schro_params = avccontext->priv_data;
@@ -275,8 +279,9 @@ static int libschroedinger_encode_frame(AVCodecContext *avccontext,
     int presentation_frame;
     int parse_code;
     int last_frame_in_sequence = 0;
+    int pkt_size, ret;
 
-    if (!data) {
+    if (!frame) {
         /* Push end of sequence if not already signalled. */
         if (!p_schro_params->eos_signalled) {
             schro_encoder_end_of_stream(encoder);
@@ -285,7 +290,7 @@ static int libschroedinger_encode_frame(AVCodecContext *avccontext,
     } else {
         /* Allocate frame data to schro input buffer. */
         SchroFrame *in_frame = libschroedinger_frame_from_data(avccontext,
-                                                               data);
+                                                               frame);
         /* Load next frame. */
         schro_encoder_push_frame(encoder, in_frame);
     }
@@ -373,28 +378,42 @@ static int libschroedinger_encode_frame(AVCodecContext *avccontext,
     if (!p_frame_output)
         return 0;
 
-    memcpy(frame, p_frame_output->p_encbuf, p_frame_output->size);
+    pkt_size = p_frame_output->size;
+    if (last_frame_in_sequence && p_schro_params->enc_buf_size > 0)
+        pkt_size += p_schro_params->enc_buf_size;
+    if ((ret = ff_alloc_packet(pkt, pkt_size)) < 0) {
+        av_log(avccontext, AV_LOG_ERROR, "Error getting output packet of size %d.\n", pkt_size);
+        goto error;
+    }
+
+    memcpy(pkt->data, p_frame_output->p_encbuf, p_frame_output->size);
     avccontext->coded_frame->key_frame = p_frame_output->key_frame;
     /* Use the frame number of the encoded frame as the pts. It is OK to
      * do so since Dirac is a constant frame rate codec. It expects input
      * to be of constant frame rate. */
+    pkt->pts =
     avccontext->coded_frame->pts = p_frame_output->frame_num;
+    pkt->dts = p_schro_params->dts++;
     enc_size = p_frame_output->size;
 
     /* Append the end of sequence information to the last frame in the
      * sequence. */
     if (last_frame_in_sequence && p_schro_params->enc_buf_size > 0) {
-        memcpy(frame + enc_size, p_schro_params->enc_buf,
+        memcpy(pkt->data + enc_size, p_schro_params->enc_buf,
                p_schro_params->enc_buf_size);
         enc_size += p_schro_params->enc_buf_size;
         av_freep(&p_schro_params->enc_buf);
         p_schro_params->enc_buf_size = 0;
     }
 
+    if (p_frame_output->key_frame)
+        pkt->flags |= AV_PKT_FLAG_KEY;
+    *got_packet = 1;
+
+error:
     /* free frame */
     SchroedingerFreeFrame(p_frame_output);
-
-    return enc_size;
+    return ret;
 }
 
 
@@ -427,7 +446,7 @@ AVCodec ff_libschroedinger_encoder = {
     .id             = CODEC_ID_DIRAC,
     .priv_data_size = sizeof(SchroEncoderParams),
     .init           = libschroedinger_encode_init,
-    .encode         = libschroedinger_encode_frame,
+    .encode2        = libschroedinger_encode_frame,
     .close          = libschroedinger_encode_close,
    .capabilities = CODEC_CAP_DELAY,
    .pix_fmts     = (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_NONE},
diff --git a/libavcodec/libtheoraenc.c b/libavcodec/libtheoraenc.c
index f9078bafa5..30a4b285ff 100644
--- a/libavcodec/libtheoraenc.c
+++ b/libavcodec/libtheoraenc.c
@@ -35,6 +35,7 @@
 #include "libavutil/log.h"
 #include "libavutil/base64.h"
 #include "avcodec.h"
+#include "internal.h"
 
 /* libtheora includes */
 #include <theora/theoraenc.h>
@@ -260,14 +261,13 @@ static av_cold int encode_init(AVCodecContext* avc_context)
     return 0;
 }
 
-static int encode_frame(AVCodecContext* avc_context, uint8_t *outbuf,
-                        int buf_size, void *data)
+static int encode_frame(AVCodecContext* avc_context, AVPacket *pkt,
+                        const AVFrame *frame, int *got_packet)
 {
     th_ycbcr_buffer t_yuv_buffer;
     TheoraContext *h = avc_context->priv_data;
-    AVFrame *frame = data;
     ogg_packet o_packet;
-    int result, i;
+    int result, i, ret;
 
     // EOS, finish and get 1st pass stats if applicable
     if (!frame) {
@@ -328,18 +328,21 @@ static int encode_frame(AVCodecContext* avc_context, uint8_t *outbuf,
     }
 
     /* Copy ogg_packet content out to buffer */
-    if (buf_size < o_packet.bytes) {
-        av_log(avc_context, AV_LOG_ERROR, "encoded frame too large\n");
-        return -1;
+    if ((ret = ff_alloc_packet(pkt, o_packet.bytes)) < 0) {
+        av_log(avc_context, AV_LOG_ERROR, "Error getting output packet of size %ld.\n", o_packet.bytes);
+        return ret;
     }
-    memcpy(outbuf, o_packet.packet, o_packet.bytes);
+    memcpy(pkt->data, o_packet.packet, o_packet.bytes);
 
     // HACK: assumes no encoder delay, this is true until libtheora becomes
     // multithreaded (which will be disabled unless explictly requested)
-    avc_context->coded_frame->pts = frame->pts;
+    pkt->pts = pkt->dts = frame->pts;
     avc_context->coded_frame->key_frame = !(o_packet.granulepos & h->keyframe_mask);
+    if (avc_context->coded_frame->key_frame)
+        pkt->flags |= AV_PKT_FLAG_KEY;
+    *got_packet = 1;
 
-    return o_packet.bytes;
+    return 0;
 }
 
 static av_cold int encode_close(AVCodecContext* avc_context)
@@ -364,7 +367,7 @@ AVCodec ff_libtheora_encoder = {
     .priv_data_size = sizeof(TheoraContext),
     .init = encode_init,
     .close = encode_close,
-    .encode = encode_frame,
+    .encode2 = encode_frame,
     .capabilities = CODEC_CAP_DELAY, // needed to get the statsfile summary
     .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_NONE},
     .long_name = NULL_IF_CONFIG_SMALL("libtheora Theora"),
diff --git a/libavcodec/libvpxenc.c b/libavcodec/libvpxenc.c
index c7e18f0229..0aaf54775b 100644
--- a/libavcodec/libvpxenc.c
+++ b/libavcodec/libvpxenc.c
@@ -380,33 +380,33 @@ static inline void cx_pktcpy(struct FrameListData *dst,
 }
 
 /**
- * Store coded frame information in format suitable for return from encode().
+ * Store coded frame information in format suitable for return from encode2().
  *
- * Write buffer information from @a cx_frame to @a buf & @a buf_size.
- * Timing/frame details to @a coded_frame.
- * @return Frame size written to @a buf on success
- * @return AVERROR(EINVAL) on error
+ * Write information from @a cx_frame to @a pkt
+ * @return packet data size on success
+ * @return a negative AVERROR on error
  */
 static int storeframe(AVCodecContext *avctx, struct FrameListData *cx_frame,
-                      uint8_t *buf, int buf_size, AVFrame *coded_frame)
+                      AVPacket *pkt, AVFrame *coded_frame)
 {
-    if ((int) cx_frame->sz <= buf_size) {
-        buf_size = cx_frame->sz;
-        memcpy(buf, cx_frame->buf, buf_size);
+    int ret = ff_alloc_packet(pkt, cx_frame->sz);
+    if (ret >= 0) {
+        memcpy(pkt->data, cx_frame->buf, pkt->size);
+        pkt->pts = pkt->dts    = cx_frame->pts;
         coded_frame->pts       = cx_frame->pts;
         coded_frame->key_frame = !!(cx_frame->flags & VPX_FRAME_IS_KEY);
 
-        if (coded_frame->key_frame)
+        if (coded_frame->key_frame) {
             coded_frame->pict_type = AV_PICTURE_TYPE_I;
-        else
+            pkt->flags            |= AV_PKT_FLAG_KEY;
+        } else
             coded_frame->pict_type = AV_PICTURE_TYPE_P;
     } else {
         av_log(avctx, AV_LOG_ERROR,
-               "Compressed frame larger than storage provided! (%zu/%d)\n",
-               cx_frame->sz, buf_size);
-        return AVERROR(EINVAL);
+               "Error getting output packet of size %zu.\n", cx_frame->sz);
+        return ret;
     }
-    return buf_size;
+    return pkt->size;
 }
 
 /**
@@ -417,7 +417,7 @@ static int storeframe(AVCodecContext *avctx, struct FrameListData *cx_frame,
  * @return AVERROR(EINVAL) on output size error
  * @return AVERROR(ENOMEM) on coded frame queue data allocation error
  */
-static int queue_frames(AVCodecContext *avctx, uint8_t *buf, int buf_size,
+static int queue_frames(AVCodecContext *avctx, AVPacket *pkt_out,
                         AVFrame *coded_frame)
 {
     VP8Context *ctx = avctx->priv_data;
@@ -428,9 +428,9 @@ static int queue_frames(AVCodecContext *avctx, uint8_t *buf, int buf_size,
     if (ctx->coded_frame_list) {
         struct FrameListData *cx_frame = ctx->coded_frame_list;
         /* return the leading frame if we've already begun queueing */
-        size = storeframe(avctx, cx_frame, buf, buf_size, coded_frame);
+        size = storeframe(avctx, cx_frame, pkt_out, coded_frame);
         if (size < 0)
-            return AVERROR(EINVAL);
+            return size;
         ctx->coded_frame_list = cx_frame->next;
         free_coded_frame(cx_frame);
     }
@@ -447,9 +447,9 @@ static int queue_frames(AVCodecContext *avctx, uint8_t *buf, int buf_size,
                    provided a frame for output */
                 assert(!ctx->coded_frame_list);
                 cx_pktcpy(&cx_frame, pkt);
-                size = storeframe(avctx, &cx_frame, buf, buf_size, coded_frame);
+                size = storeframe(avctx, &cx_frame, pkt_out, coded_frame);
                 if (size < 0)
-                    return AVERROR(EINVAL);
+                    return size;
             } else {
                 struct FrameListData *cx_frame =
                     av_malloc(sizeof(struct FrameListData));
@@ -495,11 +495,10 @@ static int queue_frames(AVCodecContext *avctx, uint8_t *buf, int buf_size,
     return size;
 }
 
-static int vp8_encode(AVCodecContext *avctx, uint8_t *buf, int buf_size,
-                      void *data)
+static int vp8_encode(AVCodecContext *avctx, AVPacket *pkt,
+                      const AVFrame *frame, int *got_packet)
 {
     VP8Context *ctx = avctx->priv_data;
-    AVFrame *frame = data;
     struct vpx_image *rawimg = NULL;
     int64_t timestamp = 0;
     int res, coded_size;
@@ -521,7 +520,7 @@ static int vp8_encode(AVCodecContext *avctx, uint8_t *buf, int buf_size,
         log_encoder_error(avctx, "Error encoding frame");
         return AVERROR_INVALIDDATA;
     }
-    coded_size = queue_frames(avctx, buf, buf_size, avctx->coded_frame);
+    coded_size = queue_frames(avctx, pkt, avctx->coded_frame);
 
     if (!frame && avctx->flags & CODEC_FLAG_PASS1) {
         unsigned int b64_size = AV_BASE64_SIZE(ctx->twopass_stats.sz);
@@ -535,7 +534,9 @@ static int vp8_encode(AVCodecContext *avctx, uint8_t *buf, int buf_size,
         av_base64_encode(avctx->stats_out, b64_size, ctx->twopass_stats.buf,
                          ctx->twopass_stats.sz);
     }
-    return coded_size;
+
+    *got_packet = !!coded_size;
+    return 0;
 }
 
 #define OFFSET(x) offsetof(VP8Context, x)
@@ -598,7 +599,7 @@ AVCodec ff_libvpx_encoder = {
     .id             = CODEC_ID_VP8,
     .priv_data_size = sizeof(VP8Context),
     .init           = vp8_init,
-    .encode         = vp8_encode,
+    .encode2        = vp8_encode,
     .close          = vp8_free,
     .capabilities   = CODEC_CAP_DELAY | CODEC_CAP_AUTO_THREADS,
     .pix_fmts = (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
diff --git a/libavcodec/libxavs.c b/libavcodec/libxavs.c
index d7027d1092..0fc69300b5 100644
--- a/libavcodec/libxavs.c
+++ b/libavcodec/libxavs.c
@@ -37,6 +37,7 @@
 #define XAVS_PART_B8X8 0x100 /* Analyze b16x8, b*/
 
 typedef struct XavsContext {
+    AVClass        *class;
     xavs_param_t    params;
     xavs_t         *enc;
     xavs_picture_t  pic;
@@ -53,6 +54,9 @@ typedef struct XavsContext {
     int fast_pskip;
     int mbtree;
     int mixed_refs;
+
+    int64_t *pts_buffer;
+    int out_frame_count;
 } XavsContext;
 
 static void XAVS_log(void *p, int level, const char *fmt, va_list args)
@@ -70,13 +74,24 @@ static void XAVS_log(void *p, int level, const char *fmt, va_list args)
     av_vlog(p, level_map[level], fmt, args);
 }
 
-static int encode_nals(AVCodecContext *ctx, uint8_t *buf,
-                       int size, xavs_nal_t *nals,
-                       int nnal, int skip_sei)
+static int encode_nals(AVCodecContext *ctx, AVPacket *pkt,
+                       xavs_nal_t *nals, int nnal)
 {
     XavsContext *x4 = ctx->priv_data;
-    uint8_t *p = buf;
-    int i, s;
+    uint8_t *p;
+    int i, s, ret, size = x4->sei_size + FF_MIN_BUFFER_SIZE;
+
+    if (!nnal)
+        return 0;
+
+    for (i = 0; i < nnal; i++)
+        size += nals[i].i_payload;
+
+    if ((ret = ff_alloc_packet(pkt, size)) < 0) {
+        av_log(ctx, AV_LOG_ERROR, "Error getting output packet of size %d.\n", size);
+        return ret;
+    }
+    p = pkt->data;
 
     /* Write the SEI as part of the first frame. */
     if (x4->sei_size > 0 && nnal > 0) {
@@ -86,30 +101,22 @@ static int encode_nals(AVCodecContext *ctx, uint8_t *buf,
     }
 
     for (i = 0; i < nnal; i++) {
-        /* Don't put the SEI in extradata. */
-        if (skip_sei && nals[i].i_type == NAL_SEI) {
-            x4->sei = av_malloc( 5 + nals[i].i_payload * 4 / 3 );
-            if (xavs_nal_encode(x4->sei, &x4->sei_size, 1, nals + i) < 0)
-                return -1;
-
-            continue;
-        }
         s = xavs_nal_encode(p, &size, 1, nals + i);
         if (s < 0)
             return -1;
         p += s;
     }
+    pkt->size = p - pkt->data;
 
-    return p - buf;
+    return 1;
 }
 
-static int XAVS_frame(AVCodecContext *ctx, uint8_t *buf,
-                      int bufsize, void *data)
+static int XAVS_frame(AVCodecContext *ctx, AVPacket *pkt,
+                      const AVFrame *frame, int *got_packet)
 {
     XavsContext *x4 = ctx->priv_data;
-    AVFrame *frame = data;
     xavs_nal_t *nal;
-    int nnal, i;
+    int nnal, i, ret;
     xavs_picture_t pic_out;
 
     x4->pic.img.i_csp   = XAVS_CSP_I420;
@@ -123,29 +130,44 @@ static int XAVS_frame(AVCodecContext *ctx, uint8_t *buf,
 
         x4->pic.i_pts  = frame->pts;
         x4->pic.i_type = XAVS_TYPE_AUTO;
+        x4->pts_buffer[ctx->frame_number % (ctx->max_b_frames+1)] = frame->pts;
     }
 
     if (xavs_encoder_encode(x4->enc, &nal, &nnal,
                             frame? &x4->pic: NULL, &pic_out) < 0)
     return -1;
 
-    bufsize = encode_nals(ctx, buf, bufsize, nal, nnal, 0);
+    ret = encode_nals(ctx, pkt, nal, nnal);
 
-    if (bufsize < 0)
+    if (ret < 0)
         return -1;
 
-    if (!bufsize && !frame && !(x4->end_of_stream)){
-        buf[bufsize]   = 0x0;
-        buf[bufsize+1] = 0x0;
-        buf[bufsize+2] = 0x01;
-        buf[bufsize+3] = 0xb1;
-        bufsize += 4;
-        x4->end_of_stream = END_OF_STREAM;
-        return bufsize;
+    if (!ret) {
+        if (!frame && !(x4->end_of_stream)) {
+            if ((ret = ff_alloc_packet(pkt, 4)) < 0)
+                return ret;
+
+            pkt->data[0] = 0x0;
+            pkt->data[1] = 0x0;
+            pkt->data[2] = 0x01;
+            pkt->data[3] = 0xb1;
+            pkt->dts = 2*x4->pts_buffer[(x4->out_frame_count-1)%(ctx->max_b_frames+1)] -
+                       x4->pts_buffer[(x4->out_frame_count-2)%(ctx->max_b_frames+1)];
+            x4->end_of_stream = END_OF_STREAM;
+            *got_packet = 1;
+        }
+        return 0;
     }
-    /* FIXME: libxavs now provides DTS */
-    /* but AVFrame doesn't have a field for it. */
+
     x4->out_pic.pts = pic_out.i_pts;
+    pkt->pts = pic_out.i_pts;
+    if (ctx->has_b_frames) {
+        if (!x4->out_frame_count)
+            pkt->dts = pkt->pts - (x4->pts_buffer[1] - x4->pts_buffer[0]);
+        else
+            pkt->dts = x4->pts_buffer[(x4->out_frame_count-1)%(ctx->max_b_frames+1)];
+    } else
+        pkt->dts = pkt->pts;
 
     switch (pic_out.i_type) {
     case XAVS_TYPE_IDR:
@@ -163,11 +185,16 @@ static int XAVS_frame(AVCodecContext *ctx, uint8_t *buf,
 
     /* There is no IDR frame in AVS JiZhun */
     /* Sequence header is used as a flag */
-    x4->out_pic.key_frame = pic_out.i_type == XAVS_TYPE_I;
+    if (pic_out.i_type == XAVS_TYPE_I) {
+        x4->out_pic.key_frame = 1;
+        pkt->flags |= AV_PKT_FLAG_KEY;
+    }
 
     x4->out_pic.quality   = (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA;
 
-    return bufsize;
+    x4->out_frame_count++;
+    *got_packet = ret;
+    return 0;
 }
 
 static av_cold int XAVS_close(AVCodecContext *avctx)
@@ -176,6 +203,7 @@ static av_cold int XAVS_close(AVCodecContext *avctx)
 
     av_freep(&avctx->extradata);
     av_free(x4->sei);
+    av_freep(&x4->pts_buffer);
 
     if (x4->enc)
         xavs_encoder_close(x4->enc);
@@ -324,17 +352,35 @@ static av_cold int XAVS_init(AVCodecContext *avctx)
     if (!x4->enc)
         return -1;
 
+    if (!(x4->pts_buffer = av_mallocz((avctx->max_b_frames+1) * sizeof(*x4->pts_buffer))))
+        return AVERROR(ENOMEM);
+
     avctx->coded_frame = &x4->out_pic;
     /* TAG: Do we have GLOBAL HEADER in AVS */
     /* We Have PPS and SPS in AVS */
     if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) {
         xavs_nal_t *nal;
-        int nnal, s;
+        int nnal, s, i, size;
+        uint8_t *p;
 
         s = xavs_encoder_headers(x4->enc, &nal, &nnal);
 
-        avctx->extradata      = av_malloc(s);
-        avctx->extradata_size = encode_nals(avctx, avctx->extradata, s, nal, nnal, 1);
+        avctx->extradata = p = av_malloc(s);
+        for (i = 0; i < nnal; i++) {
+            /* Don't put the SEI in extradata. */
+            if (nal[i].i_type == NAL_SEI) {
+                x4->sei = av_malloc( 5 + nal[i].i_payload * 4 / 3 );
+                if (xavs_nal_encode(x4->sei, &x4->sei_size, 1, nal + i) < 0)
+                    return -1;
+
+                continue;
+            }
+            size = xavs_nal_encode(p, &s, 1, nal + i);
+            if (size < 0)
+                return -1;
+            p += size;
+        }
+        avctx->extradata_size = p - avctx->extradata;
     }
     return 0;
 }
@@ -376,7 +422,7 @@ AVCodec ff_libxavs_encoder = {
     .id             = CODEC_ID_CAVS,
     .priv_data_size = sizeof(XavsContext),
     .init           = XAVS_init,
-    .encode         = XAVS_frame,
+    .encode2        = XAVS_frame,
     .close          = XAVS_close,
     .capabilities   = CODEC_CAP_DELAY | CODEC_CAP_AUTO_THREADS,
     .pix_fmts       = (const enum PixelFormat[]) { PIX_FMT_YUV420P, PIX_FMT_NONE },
diff --git a/libavcodec/libxvidff.c b/libavcodec/libxvidff.c
index 1501b44135..a77fafc7ec 100644
--- a/libavcodec/libxvidff.c
+++ b/libavcodec/libxvidff.c
@@ -33,6 +33,7 @@
 #include "libavutil/intreadwrite.h"
 #include "libavutil/mathematics.h"
 #include "libxvid_internal.h"
+#include "mpegvideo.h"
 
 /**
  * Buffer management macros.
@@ -71,7 +72,7 @@ struct xvid_ff_pass1 {
 };
 
 /* Prototypes - See function implementation for details */
-int xvid_strip_vol_header(AVCodecContext *avctx, unsigned char *frame, unsigned int header_len, unsigned int frame_len);
+int xvid_strip_vol_header(AVCodecContext *avctx, AVPacket *pkt, unsigned int header_len, unsigned int frame_len);
 int xvid_ff_2pass(void *ref, int opt, void *p1, void *p2);
 void xvid_correct_framerate(AVCodecContext *avctx);
 
@@ -370,17 +371,25 @@ static av_cold int xvid_encode_init(AVCodecContext *avctx)  {
  * @param data Pointer to AVFrame of unencoded frame
  * @return Returns 0 on success, -1 on failure
  */
-static int xvid_encode_frame(AVCodecContext *avctx,
-                         unsigned char *frame, int buf_size, void *data) {
-    int xerr, i;
+static int xvid_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
+                             const AVFrame *picture, int *got_packet)
+{
+    int xerr, i, ret, user_packet = !!pkt->data;
     char *tmp;
     struct xvid_context *x = avctx->priv_data;
-    AVFrame *picture = data;
     AVFrame *p = &x->encoded_picture;
+    int mb_width   = (avctx->width  + 15) / 16;
+    int mb_height  = (avctx->height + 15) / 16;
 
     xvid_enc_frame_t xvid_enc_frame;
     xvid_enc_stats_t xvid_enc_stats;
 
+    if (!user_packet &&
+        (ret = av_new_packet(pkt, mb_width*mb_height*MAX_MB_BYTES + FF_MIN_BUFFER_SIZE)) < 0) {
+        av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
+        return ret;
+    }
+
     /* Start setting up the frame */
     memset(&xvid_enc_frame, 0, sizeof(xvid_enc_frame));
     xvid_enc_frame.version = XVID_VERSION;
@@ -389,8 +398,8 @@ static int xvid_encode_frame(AVCodecContext *avctx,
     *p = *picture;
 
     /* Let Xvid know where to put the frame. */
-    xvid_enc_frame.bitstream = frame;
-    xvid_enc_frame.length = buf_size;
+    xvid_enc_frame.bitstream = pkt->data;
+    xvid_enc_frame.length    = pkt->size;
 
     /* Initialize input image fields */
     if( avctx->pix_fmt != PIX_FMT_YUV420P ) {
@@ -450,7 +459,9 @@ static int xvid_encode_frame(AVCodecContext *avctx,
         }
     }
 
-    if( 0 <= xerr ) {
+    if (xerr > 0) {
+        *got_packet = 1;
+
         p->quality = xvid_enc_stats.quant * FF_QP2LAMBDA;
         if( xvid_enc_stats.type == XVID_TYPE_PVOP )
             p->pict_type = AV_PICTURE_TYPE_P;
@@ -462,14 +473,21 @@ static int xvid_encode_frame(AVCodecContext *avctx,
             p->pict_type = AV_PICTURE_TYPE_I;
         if( xvid_enc_frame.out_flags & XVID_KEYFRAME ) {
             p->key_frame = 1;
+            pkt->flags |= AV_PKT_FLAG_KEY;
             if( x->quicktime_format )
-                return xvid_strip_vol_header(avctx, frame,
+                return xvid_strip_vol_header(avctx, pkt,
                     xvid_enc_stats.hlength, xerr);
          } else
             p->key_frame = 0;
 
-        return xerr;
+        pkt->size = xerr;
+
+        return 0;
     } else {
+        if (!user_packet)
+            av_free_packet(pkt);
+        if (!xerr)
+            return 0;
         av_log(avctx, AV_LOG_ERROR, "Xvid: Encoding Error Occurred: %i\n", xerr);
         return -1;
     }
@@ -514,16 +532,16 @@ static av_cold int xvid_encode_close(AVCodecContext *avctx) {
  * @return Returns new length of frame data
  */
 int xvid_strip_vol_header(AVCodecContext *avctx,
-                  unsigned char *frame,
+                  AVPacket *pkt,
                   unsigned int header_len,
                   unsigned int frame_len) {
     int vo_len = 0, i;
 
     for( i = 0; i < header_len - 3; i++ ) {
-        if( frame[i] == 0x00 &&
-            frame[i+1] == 0x00 &&
-            frame[i+2] == 0x01 &&
-            frame[i+3] == 0xB6 ) {
+        if( pkt->data[i] == 0x00 &&
+            pkt->data[i+1] == 0x00 &&
+            pkt->data[i+2] == 0x01 &&
+            pkt->data[i+3] == 0xB6 ) {
             vo_len = i;
             break;
         }
@@ -533,15 +551,15 @@ int xvid_strip_vol_header(AVCodecContext *avctx,
         /* We need to store the header, so extract it */
         if( avctx->extradata == NULL ) {
             avctx->extradata = av_malloc(vo_len);
-            memcpy(avctx->extradata, frame, vo_len);
+            memcpy(avctx->extradata, pkt->data, vo_len);
             avctx->extradata_size = vo_len;
         }
         /* Less dangerous now, memmove properly copies the two
            chunks of overlapping data */
-        memmove(frame, &frame[vo_len], frame_len - vo_len);
-        return frame_len - vo_len;
-    } else
-        return frame_len;
+        memmove(pkt->data, &pkt->data[vo_len], frame_len - vo_len);
+        pkt->size = frame_len - vo_len;
+    }
+    return 0;
 }
 
 /**
@@ -777,7 +795,7 @@ AVCodec ff_libxvid_encoder = {
     .id             = CODEC_ID_MPEG4,
     .priv_data_size = sizeof(struct xvid_context),
     .init           = xvid_encode_init,
-    .encode         = xvid_encode_frame,
+    .encode2        = xvid_encode_frame,
     .close          = xvid_encode_close,
     .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
     .long_name= NULL_IF_CONFIG_SMALL("libxvidcore MPEG-4 part 2"),
diff --git a/libavcodec/ljpegenc.c b/libavcodec/ljpegenc.c
index 1514b018ad..00d34ecc9c 100644
--- a/libavcodec/ljpegenc.c
+++ b/libavcodec/ljpegenc.c
@@ -32,21 +32,37 @@
 
 #include "avcodec.h"
 #include "dsputil.h"
+#include "internal.h"
 #include "mpegvideo.h"
 #include "mjpeg.h"
 #include "mjpegenc.h"
 
 
-static int encode_picture_lossless(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data){
+static int encode_picture_lossless(AVCodecContext *avctx, AVPacket *pkt,
+                                   const AVFrame *pict, int *got_packet)
+{
     MpegEncContext * const s = avctx->priv_data;
     MJpegContext * const m = s->mjpeg_ctx;
-    AVFrame *pict = data;
     const int width= s->width;
     const int height= s->height;
     AVFrame * const p= (AVFrame*)&s->current_picture;
     const int predictor= avctx->prediction_method+1;
+    const int mb_width  = (width  + s->mjpeg_hsample[0] - 1) / s->mjpeg_hsample[0];
+    const int mb_height = (height + s->mjpeg_vsample[0] - 1) / s->mjpeg_vsample[0];
+    int ret, max_pkt_size = FF_MIN_BUFFER_SIZE;
+
+    if (avctx->pix_fmt == PIX_FMT_BGRA)
+        max_pkt_size += width * height * 3 * 4;
+    else {
+        max_pkt_size += mb_width * mb_height * 3 * 4
+                        * s->mjpeg_hsample[0] * s->mjpeg_vsample[0];
+    }
+    if ((ret = ff_alloc_packet(pkt, max_pkt_size)) < 0) {
+        av_log(avctx, AV_LOG_ERROR, "Error getting output packet of size %d.\n", max_pkt_size);
+        return ret;
+    }
 
-    init_put_bits(&s->pb, buf, buf_size);
+    init_put_bits(&s->pb, pkt->data, pkt->size);
 
     *p = *pict;
     p->pict_type= AV_PICTURE_TYPE_I;
@@ -112,8 +128,6 @@ static int encode_picture_lossless(AVCodecContext *avctx, unsigned char *buf, in
         }
     }else{
         int mb_x, mb_y, i;
-        const int mb_width  = (width  + s->mjpeg_hsample[0] - 1) / s->mjpeg_hsample[0];
-        const int mb_height = (height + s->mjpeg_vsample[0] - 1) / s->mjpeg_vsample[0];
 
         for(mb_y = 0; mb_y < mb_height; mb_y++) {
             if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < mb_width * 4 * 3 * s->mjpeg_hsample[0] * s->mjpeg_vsample[0]){
@@ -189,7 +203,11 @@ static int encode_picture_lossless(AVCodecContext *avctx, unsigned char *buf, in
     s->picture_number++;
 
     flush_put_bits(&s->pb);
-    return put_bits_ptr(&s->pb) - s->pb.buf;
+    pkt->size   = put_bits_ptr(&s->pb) - s->pb.buf;
+    pkt->flags |= AV_PKT_FLAG_KEY;
+    *got_packet = 1;
+
+    return 0;
 //    return (put_bits_count(&f->pb)+7)/8;
 }
 
@@ -200,7 +218,7 @@ AVCodec ff_ljpeg_encoder = { //FIXME avoid MPV_* lossless JPEG should not need t
     .id             = CODEC_ID_LJPEG,
     .priv_data_size = sizeof(MpegEncContext),
     .init           = ff_MPV_encode_init,
-    .encode         = encode_picture_lossless,
+    .encode2        = encode_picture_lossless,
     .close          = ff_MPV_encode_end,
     .long_name      = NULL_IF_CONFIG_SMALL("Lossless JPEG"),
 };
diff --git a/libavcodec/qtrleenc.c b/libavcodec/qtrleenc.c
index da520bc7eb..6ca4a3e818 100644
--- a/libavcodec/qtrleenc.c
+++ b/libavcodec/qtrleenc.c
@@ -25,6 +25,7 @@
 #include "libavutil/imgutils.h"
 #include "avcodec.h"
 #include "bytestream.h"
+#include "internal.h"
 
 /** Maximum RLE code for bulk copy */
 #define MAX_RLE_BULK   127
@@ -102,7 +103,7 @@ static av_cold int qtrle_encode_init(AVCodecContext *avctx)
         return -1;
     }
 
-    s->max_buf_size = s->logical_width*s->avctx->height*s->pixel_size /* image base material */
+    s->max_buf_size = s->logical_width*s->avctx->height*s->pixel_size*2 /* image base material */
                       + 15                                            /* header + footer */
                       + s->avctx->height*2                            /* skip code+rle end */
                       + s->logical_width/MAX_RLE_BULK + 1             /* rle codes */;
@@ -113,7 +114,7 @@ static av_cold int qtrle_encode_init(AVCodecContext *avctx)
 /**
  * Compute the best RLE sequence for a line
  */
-static void qtrle_encode_line(QtrleEncContext *s, AVFrame *p, int line, uint8_t **buf)
+static void qtrle_encode_line(QtrleEncContext *s, const AVFrame *p, int line, uint8_t **buf)
 {
     int width=s->logical_width;
     int i;
@@ -259,7 +260,7 @@ static void qtrle_encode_line(QtrleEncContext *s, AVFrame *p, int line, uint8_t
 }
 
 /** Encode frame including header */
-static int encode_frame(QtrleEncContext *s, AVFrame *p, uint8_t *buf)
+static int encode_frame(QtrleEncContext *s, const AVFrame *p, uint8_t *buf)
 {
     int i;
     int start_line = 0;
@@ -300,19 +301,19 @@ static int encode_frame(QtrleEncContext *s, AVFrame *p, uint8_t *buf)
     return buf - orig_buf;
 }
 
-static int qtrle_encode_frame(AVCodecContext *avctx, uint8_t *buf, int buf_size, void *data)
+static int qtrle_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
+                              const AVFrame *pict, int *got_packet)
 {
     QtrleEncContext * const s = avctx->priv_data;
-    AVFrame *pict = data;
     AVFrame * const p = &s->frame;
-    int chunksize;
+    int ret;
 
     *p = *pict;
 
-    if (buf_size < s->max_buf_size) {
+    if ((ret = ff_alloc_packet(pkt, s->max_buf_size)) < 0) {
         /* Upper bound check for compressed data */
-        av_log(avctx, AV_LOG_ERROR, "buf_size %d <  %d\n", buf_size, s->max_buf_size);
-        return -1;
+        av_log(avctx, AV_LOG_ERROR, "Error getting output packet of size %d.\n", s->max_buf_size);
+        return ret;
     }
 
     if (avctx->gop_size == 0 || (s->avctx->frame_number % avctx->gop_size) == 0) {
@@ -325,11 +326,16 @@ static int qtrle_encode_frame(AVCodecContext *avctx, uint8_t *buf, int buf_size,
         p->key_frame = 0;
     }
 
-    chunksize = encode_frame(s, pict, buf);
+    pkt->size = encode_frame(s, pict, pkt->data);
 
     /* save the current frame */
     av_picture_copy(&s->previous_frame, (AVPicture *)p, avctx->pix_fmt, avctx->width, avctx->height);
-    return chunksize;
+
+    if (p->key_frame)
+        pkt->flags |= AV_PKT_FLAG_KEY;
+    *got_packet = 1;
+
+    return 0;
 }
 
 static av_cold int qtrle_encode_end(AVCodecContext *avctx)
@@ -349,7 +355,7 @@ AVCodec ff_qtrle_encoder = {
     .id             = CODEC_ID_QTRLE,
     .priv_data_size = sizeof(QtrleEncContext),
     .init           = qtrle_encode_init,
-    .encode         = qtrle_encode_frame,
+    .encode2        = qtrle_encode_frame,
     .close          = qtrle_encode_end,
     .pix_fmts = (const enum PixelFormat[]){PIX_FMT_RGB24, PIX_FMT_RGB555BE, PIX_FMT_ARGB, PIX_FMT_GRAY8, PIX_FMT_NONE},
     .long_name = NULL_IF_CONFIG_SMALL("QuickTime Animation (RLE) video"),
diff --git a/libavcodec/snowenc.c b/libavcodec/snowenc.c
index 4c118fe986..2bcbd7e721 100644
--- a/libavcodec/snowenc.c
+++ b/libavcodec/snowenc.c
@@ -1600,17 +1600,25 @@ static void calculate_visual_weight(SnowContext *s, Plane *p){
     }
 }
 
-static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data){
+static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
+                        const AVFrame *pict, int *got_packet)
+{
     SnowContext *s = avctx->priv_data;
     RangeCoder * const c= &s->c;
-    AVFrame *pict = data;
+    AVFrame *pic = &s->new_picture;
     const int width= s->avctx->width;
     const int height= s->avctx->height;
-    int level, orientation, plane_index, i, y;
+    int level, orientation, plane_index, i, y, ret;
     uint8_t rc_header_bak[sizeof(s->header_state)];
     uint8_t rc_block_bak[sizeof(s->block_state)];
 
-    ff_init_range_encoder(c, buf, buf_size);
+    if (!pkt->data &&
+        (ret = av_new_packet(pkt, s->b_width*s->b_height*MB_SIZE*MB_SIZE*3 + FF_MIN_BUFFER_SIZE)) < 0) {
+        av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
+        return ret;
+    }
+
+    ff_init_range_encoder(c, pkt->data, pkt->size);
     ff_build_rac_states(c, 0.05*(1LL<<32), 256-8);
 
     for(i=0; i<3; i++){
@@ -1624,27 +1632,25 @@ static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size,
 
     s->m.picture_number= avctx->frame_number;
     if(avctx->flags&CODEC_FLAG_PASS2){
-        s->m.pict_type =
-        pict->pict_type= s->m.rc_context.entry[avctx->frame_number].new_pict_type;
-        s->keyframe= pict->pict_type==AV_PICTURE_TYPE_I;
+        s->m.pict_type = pic->pict_type = s->m.rc_context.entry[avctx->frame_number].new_pict_type;
+        s->keyframe = pic->pict_type == AV_PICTURE_TYPE_I;
         if(!(avctx->flags&CODEC_FLAG_QSCALE)) {
-            pict->quality= ff_rate_estimate_qscale(&s->m, 0);
-            if (pict->quality < 0)
+            pic->quality = ff_rate_estimate_qscale(&s->m, 0);
+            if (pic->quality < 0)
                 return -1;
         }
     }else{
         s->keyframe= avctx->gop_size==0 || avctx->frame_number % avctx->gop_size == 0;
-        s->m.pict_type=
-        pict->pict_type= s->keyframe ? AV_PICTURE_TYPE_I : AV_PICTURE_TYPE_P;
+        s->m.pict_type = pic->pict_type = s->keyframe ? AV_PICTURE_TYPE_I : AV_PICTURE_TYPE_P;
     }
 
     if(s->pass1_rc && avctx->frame_number == 0)
-        pict->quality= 2*FF_QP2LAMBDA;
-    if(pict->quality){
-        s->qlog= qscale2qlog(pict->quality);
-        s->lambda = pict->quality * 3/2;
+        pic->quality = 2*FF_QP2LAMBDA;
+    if (pic->quality) {
+        s->qlog   = qscale2qlog(pic->quality);
+        s->lambda = pic->quality * 3/2;
     }
-    if(s->qlog < 0 || (!pict->quality && (avctx->flags & CODEC_FLAG_QSCALE))){
+    if (s->qlog < 0 || (!pic->quality && (avctx->flags & CODEC_FLAG_QSCALE))) {
         s->qlog= LOSSLESS_QLOG;
         s->lambda = 0;
     }//else keep previous frame's qlog until after motion estimation
@@ -1654,7 +1660,7 @@ static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size,
     s->m.current_picture_ptr= &s->m.current_picture;
     s->m.last_picture.f.pts = s->m.current_picture.f.pts;
     s->m.current_picture.f.pts = pict->pts;
-    if(pict->pict_type == AV_PICTURE_TYPE_P){
+    if(pic->pict_type == AV_PICTURE_TYPE_P){
         int block_width = (width +15)>>4;
         int block_height= (height+15)>>4;
         int stride= s->current_picture.linesize[0];
@@ -1679,7 +1685,7 @@ static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size,
         s->m.mb_stride=   s->m.mb_width+1;
         s->m.b8_stride= 2*s->m.mb_width+1;
         s->m.f_code=1;
-        s->m.pict_type= pict->pict_type;
+        s->m.pict_type = pic->pict_type;
         s->m.me_method= s->avctx->me_method;
         s->m.me.scene_change_score=0;
         s->m.flags= s->avctx->flags;
@@ -1703,13 +1709,13 @@ static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size,
 
 redo_frame:
 
-    if(pict->pict_type == AV_PICTURE_TYPE_I)
+    if (pic->pict_type == AV_PICTURE_TYPE_I)
         s->spatial_decomposition_count= 5;
     else
         s->spatial_decomposition_count= 5;
 
-    s->m.pict_type = pict->pict_type;
-    s->qbias= pict->pict_type == AV_PICTURE_TYPE_P ? 2 : 0;
+    s->m.pict_type = pic->pict_type;
+    s->qbias = pic->pict_type == AV_PICTURE_TYPE_P ? 2 : 0;
 
     ff_snow_common_init_after_header(avctx);
 
@@ -1742,12 +1748,12 @@ redo_frame:
             predict_plane(s, s->spatial_idwt_buffer, plane_index, 0);
 
             if(   plane_index==0
-               && pict->pict_type == AV_PICTURE_TYPE_P
+               && pic->pict_type == AV_PICTURE_TYPE_P
                && !(avctx->flags&CODEC_FLAG_PASS2)
                && s->m.me.scene_change_score > s->avctx->scenechange_threshold){
-                ff_init_range_encoder(c, buf, buf_size);
+                ff_init_range_encoder(c, pkt->data, pkt->size);
                 ff_build_rac_states(c, 0.05*(1LL<<32), 256-8);
-                pict->pict_type= AV_PICTURE_TYPE_I;
+                pic->pict_type= AV_PICTURE_TYPE_I;
                 s->keyframe=1;
                 s->current_picture.key_frame=1;
                 goto redo_frame;
@@ -1773,12 +1779,12 @@ redo_frame:
                 ff_spatial_dwt(s->spatial_dwt_buffer, w, h, w, s->spatial_decomposition_type, s->spatial_decomposition_count);
 
             if(s->pass1_rc && plane_index==0){
-                int delta_qlog = ratecontrol_1pass(s, pict);
+                int delta_qlog = ratecontrol_1pass(s, pic);
                 if (delta_qlog <= INT_MIN)
                     return -1;
                 if(delta_qlog){
                     //reordering qlog in the bitstream would eliminate this reset
-                    ff_init_range_encoder(c, buf, buf_size);
+                    ff_init_range_encoder(c, pkt->data, pkt->size);
                     memcpy(s->header_state, rc_header_bak, sizeof(s->header_state));
                     memcpy(s->block_state, rc_block_bak, sizeof(s->block_state));
                     encode_header(s);
@@ -1793,7 +1799,7 @@ redo_frame:
                     if(!QUANTIZE2)
                         quantize(s, b, b->ibuf, b->buf, b->stride, s->qbias);
                     if(orientation==0)
-                        decorrelate(s, b, b->ibuf, b->stride, pict->pict_type == AV_PICTURE_TYPE_P, 0);
+                        decorrelate(s, b, b->ibuf, b->stride, pic->pict_type == AV_PICTURE_TYPE_P, 0);
                     encode_subband(s, b, b->ibuf, b->parent ? b->parent->ibuf : NULL, b->stride, orientation);
                     assert(b->parent==NULL || b->parent->stride == b->stride*2);
                     if(orientation==0)
@@ -1820,7 +1826,7 @@ redo_frame:
             predict_plane(s, s->spatial_idwt_buffer, plane_index, 1);
         }else{
             //ME/MC only
-            if(pict->pict_type == AV_PICTURE_TYPE_I){
+            if(pic->pict_type == AV_PICTURE_TYPE_I){
                 for(y=0; y<h; y++){
                     for(x=0; x<w; x++){
                         s->current_picture.data[plane_index][y*s->current_picture.linesize[plane_index] + x]=
@@ -1859,7 +1865,7 @@ redo_frame:
     s->m.p_tex_bits = s->m.frame_bits - s->m.misc_bits - s->m.mv_bits;
     s->m.current_picture.f.display_picture_number =
     s->m.current_picture.f.coded_picture_number   = avctx->frame_number;
-    s->m.current_picture.f.quality                = pict->quality;
+    s->m.current_picture.f.quality                = pic->quality;
     s->m.total_bits += 8*(s->c.bytestream - s->c.bytestream_start);
     if(s->pass1_rc)
         if (ff_rate_estimate_qscale(&s->m, 0) < 0)
@@ -1874,7 +1880,12 @@ redo_frame:
 
     emms_c();
 
-    return ff_rac_terminate(c);
+    pkt->size = ff_rac_terminate(c);
+    if (avctx->coded_frame->key_frame)
+        pkt->flags |= AV_PKT_FLAG_KEY;
+    *got_packet = 1;
+
+    return 0;
 }
 
 static av_cold int encode_end(AVCodecContext *avctx)
@@ -1909,7 +1920,7 @@ AVCodec ff_snow_encoder = {
     .id             = CODEC_ID_SNOW,
     .priv_data_size = sizeof(SnowContext),
     .init           = encode_init,
-    .encode         = encode_frame,
+    .encode2        = encode_frame,
     .close          = encode_end,
     .long_name = NULL_IF_CONFIG_SMALL("Snow"),
     .priv_class     = &snowenc_class,
diff --git a/libavcodec/tiffenc.c b/libavcodec/tiffenc.c
index 85976f41c0..a0fecf7b0f 100644
--- a/libavcodec/tiffenc.c
+++ b/libavcodec/tiffenc.c
@@ -202,15 +202,13 @@ static void pack_yuv(TiffEncoderContext * s, uint8_t * dst, int lnum)
     }
 }
 
-static int encode_frame(AVCodecContext * avctx, unsigned char *buf,
-                        int buf_size, void *data)
+static int encode_frame(AVCodecContext * avctx, AVPacket *pkt,
+                        const AVFrame *pict, int *got_packet)
 {
     TiffEncoderContext *s = avctx->priv_data;
-    AVFrame *pict = data;
     AVFrame *const p = (AVFrame *) & s->picture;
     int i;
-    int n;
-    uint8_t *ptr = buf;
+    uint8_t *ptr;
     uint8_t *offset;
     uint32_t strips;
     uint32_t *strip_sizes = NULL;
@@ -224,9 +222,6 @@ static int encode_frame(AVCodecContext * avctx, unsigned char *buf,
     int shift_h, shift_v;
 
     s->avctx = avctx;
-    s->buf_start = buf;
-    s->buf = &ptr;
-    s->buf_size = buf_size;
 
     *p = *pict;
     p->pict_type = AV_PICTURE_TYPE_I;
@@ -308,6 +303,17 @@ static int encode_frame(AVCodecContext * avctx, unsigned char *buf,
 
     strips = (s->height - 1) / s->rps + 1;
 
+    if (!pkt->data &&
+        (ret = av_new_packet(pkt, avctx->width * avctx->height * s->bpp * 2 +
+                                  avctx->height * 4 + FF_MIN_BUFFER_SIZE)) < 0) {
+        av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
+        return ret;
+    }
+    ptr          = pkt->data;
+    s->buf_start = pkt->data;
+    s->buf       = &ptr;
+    s->buf_size  = pkt->size;
+
     if (check_size(s, 8))
         goto fail;
 
@@ -339,7 +345,7 @@ static int encode_frame(AVCodecContext * avctx, unsigned char *buf,
 
         zlen = bytes_per_row * s->rps;
         zbuf = av_malloc(zlen);
-        strip_offsets[0] = ptr - buf;
+        strip_offsets[0] = ptr - pkt->data;
         zn = 0;
         for (j = 0; j < s->rps; j++) {
             if (is_yuv){
@@ -352,14 +358,14 @@ static int encode_frame(AVCodecContext * avctx, unsigned char *buf,
                        p->data[0] + j * p->linesize[0], bytes_per_row);
             zn += bytes_per_row;
         }
-        n = encode_strip(s, zbuf, ptr, zn, s->compr);
+        ret = encode_strip(s, zbuf, ptr, zn, s->compr);
         av_free(zbuf);
-        if (n<0) {
+        if (ret < 0) {
             av_log(s->avctx, AV_LOG_ERROR, "Encode strip failed\n");
             goto fail;
         }
-        ptr += n;
-        strip_sizes[0] = ptr - buf - strip_offsets[0];
+        ptr += ret;
+        strip_sizes[0] = ptr - pkt->data - strip_offsets[0];
     } else
 #endif
     {
@@ -371,24 +377,23 @@ static int encode_frame(AVCodecContext * avctx, unsigned char *buf,
                     ff_lzw_encode_init(s->lzws, ptr, s->buf_size - (*s->buf - s->buf_start),
                                        12, FF_LZW_TIFF, put_bits);
                 }
-                strip_offsets[i / s->rps] = ptr - buf;
+                strip_offsets[i / s->rps] = ptr - pkt->data;
             }
             if (is_yuv){
                  pack_yuv(s, yuv_line, i);
-                 n = encode_strip(s, yuv_line, ptr, bytes_per_row, s->compr);
+                 ret = encode_strip(s, yuv_line, ptr, bytes_per_row, s->compr);
                  i += s->subsampling[1] - 1;
             }
             else
-                n = encode_strip(s, p->data[0] + i * p->linesize[0],
+                ret = encode_strip(s, p->data[0] + i * p->linesize[0],
                         ptr, bytes_per_row, s->compr);
-            if (n < 0) {
+            if (ret < 0) {
                 av_log(s->avctx, AV_LOG_ERROR, "Encode strip failed\n");
                 goto fail;
             }
-            strip_sizes[i / s->rps] += n;
-            ptr += n;
+            strip_sizes[i / s->rps] += ret;
+            ptr += ret;
             if(s->compr == TIFF_LZW && (i==s->height-1 || i%s->rps == s->rps-1)){
-                int ret;
                 ret = ff_lzw_encode_flush(s->lzws, flush_put_bits);
                 strip_sizes[(i / s->rps )] += ret ;
                 ptr += ret;
@@ -440,15 +445,19 @@ static int encode_frame(AVCodecContext * avctx, unsigned char *buf,
         add_entry(s, TIFF_YCBCR_SUBSAMPLING, TIFF_SHORT,    2, s->subsampling);
         add_entry(s, TIFF_REFERENCE_BW,      TIFF_RATIONAL, 6, refbw);
     }
-    bytestream_put_le32(&offset, ptr - buf);    // write offset to dir
+    bytestream_put_le32(&offset, ptr - pkt->data);    // write offset to dir
 
-    if (check_size(s, 6 + s->num_entries * 12))
+    if (check_size(s, 6 + s->num_entries * 12)) {
+        ret = AVERROR(EINVAL);
         goto fail;
+    }
     bytestream_put_le16(&ptr, s->num_entries);  // write tag count
     bytestream_put_buffer(&ptr, s->entries, s->num_entries * 12);
     bytestream_put_le32(&ptr, 0);
 
-    ret = ptr - buf;
+    pkt->size   = ptr - pkt->data;
+    pkt->flags |= AV_PKT_FLAG_KEY;
+    *got_packet = 1;
 
 fail:
     av_free(strip_sizes);
@@ -483,7 +492,7 @@ AVCodec ff_tiff_encoder = {
     .type           = AVMEDIA_TYPE_VIDEO,
     .id             = CODEC_ID_TIFF,
     .priv_data_size = sizeof(TiffEncoderContext),
-    .encode         = encode_frame,
+    .encode2        = encode_frame,
     .pix_fmts =
         (const enum PixelFormat[]) {PIX_FMT_RGB24, PIX_FMT_PAL8, PIX_FMT_GRAY8,
                               PIX_FMT_MONOBLACK, PIX_FMT_MONOWHITE,
diff --git a/libavcodec/truemotion2.c b/libavcodec/truemotion2.c
index 01d9f1ee8a..985823dc25 100644
--- a/libavcodec/truemotion2.c
+++ b/libavcodec/truemotion2.c
@@ -135,7 +135,7 @@ static int tm2_build_huff_table(TM2Context *ctx, TM2Codes *code)
                huff.val_bits, huff.max_bits);
         return -1;
     }
-    if((huff.nodes < 0) || (huff.nodes > 0x10000)) {
+    if((huff.nodes <= 0) || (huff.nodes > 0x10000)) {
         av_log(ctx->avctx, AV_LOG_ERROR, "Incorrect number of Huffman tree nodes: %i\n", huff.nodes);
         return -1;
     }
diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index 7a4e01c833..7bd1059164 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -1188,9 +1188,6 @@ int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf
 }
 #endif
 
-#define MAX_CODED_FRAME_SIZE(width, height)\
-    (9*(width)*(height) + FF_MIN_BUFFER_SIZE)
-
 int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx,
                                               AVPacket *avpkt,
                                               const AVFrame *frame,
@@ -1209,44 +1206,15 @@ int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx,
     if (av_image_check_size(avctx->width, avctx->height, 0, avctx))
         return AVERROR(EINVAL);
 
-    if (avctx->codec->encode2) {
-        *got_packet_ptr = 0;
-        ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
-        if (!ret) {
-            if (!*got_packet_ptr)
-                avpkt->size = 0;
-            else if (!(avctx->codec->capabilities & CODEC_CAP_DELAY))
-                avpkt->pts = avpkt->dts = frame->pts;
-        }
-    } else {
-        /* for compatibility with encoders not supporting encode2(), we need to
-           allocate a packet buffer if the user has not provided one or check
-           the size otherwise */
-        int buf_size = avpkt->size;
-
-        if (!user_packet)
-            buf_size = MAX_CODED_FRAME_SIZE(avctx->width, avctx->height);
-
-        if ((ret = ff_alloc_packet(avpkt, buf_size)))
-            return ret;
-
-        /* encode the frame */
-        ret = avctx->codec->encode(avctx, avpkt->data, avpkt->size, frame);
-        if (ret >= 0) {
-            if (!ret) {
-                /* no output. if the packet data was allocated by libavcodec,
-                   free it */
-                if (!user_packet)
-                    av_freep(&avpkt->data);
-            } else if (avctx->coded_frame) {
-                avpkt->pts    = avctx->coded_frame->pts;
-                avpkt->flags |= AV_PKT_FLAG_KEY*!!avctx->coded_frame->key_frame;
-            }
+    av_assert0(avctx->codec->encode2);
 
-            avpkt->size     = ret;
-            *got_packet_ptr = (ret > 0);
-            ret             = 0;
-        }
+    *got_packet_ptr = 0;
+    ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
+    if (!ret) {
+        if (!*got_packet_ptr)
+            avpkt->size = 0;
+        else if (!(avctx->codec->capabilities & CODEC_CAP_DELAY))
+            avpkt->pts = avpkt->dts = frame->pts;
     }
 
     if (!ret)
diff --git a/libavcodec/wavpack.c b/libavcodec/wavpack.c
index a9d152fde3..09d22beef6 100644
--- a/libavcodec/wavpack.c
+++ b/libavcodec/wavpack.c
@@ -813,8 +813,8 @@ static int wavpack_decode_block(AVCodecContext *avctx, int block_no,
     s->hybrid         =   s->frame_flags & WV_HYBRID_MODE;
     s->hybrid_bitrate =   s->frame_flags & WV_HYBRID_BITRATE;
     s->post_shift     = bpp * 8 - orig_bpp + ((s->frame_flags >> 13) & 0x1f);
-    s->hybrid_maxclip = (( 1LL << (orig_bpp - 1)) - 1) >> s->post_shift;
-    s->hybrid_minclip = ((-1LL << (orig_bpp - 1)))     >> s->post_shift;
+    s->hybrid_maxclip = (( 1LL << (orig_bpp - 1)) - 1);
+    s->hybrid_minclip = ((-1LL << (orig_bpp - 1)));
     s->CRC            = AV_RL32(buf); buf += 4;
     if (wc->mkv_mode)
         buf += 4; //skip block size;