Merge remote-tracking branch 'qatar/master'

* qatar/master:
  APIchanges: fill in revision for AVFrame.age deprecation
  avcodec: deprecate AVFrame.age
  4xm: remove unneeded check for remaining unused data.
  lavf: force threads to 1 in avformat_find_stream_info()
  swscale: fix overflows in vertical scaling at top/bottom edges.
  lavf: add OpenMG audio muxer.
  omadec: split data that will be used in the muxer to a separate file.
  lavf: rename oma.c -> omadec.c
  tmv decoder: set correct pix_fmt

Conflicts:
	Changelog
	doc/APIchanges
	libavcodec/mpegvideo.c
	libavcodec/version.h
	libavformat/oma.c
	libavformat/version.h
	libswscale/swscale.c

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

9 files changed, 22 insertions, 72 deletions

diff --git a/libavcodec/4xm.c b/libavcodec/4xm.c
index f854f1cfb5..43f6a21ea8 100644
--- a/libavcodec/4xm.c
+++ b/libavcodec/4xm.c
@@ -440,15 +440,6 @@ static int decode_p_frame(FourXContext *f, const uint8_t *buf, int length){
         dst += 8*stride;
     }
 
-    if(   bitstream_size != (get_bits_count(&f->gb)+31)/32*4
-       || (((const char*)f->wordstream - (const char*)buf + 2)&~2) != extra + bitstream_size + wordstream_size
-       || (((const char*)f->bytestream - (const char*)buf + 3)&~3) != extra + bitstream_size + wordstream_size + bytestream_size)
-        av_log(f->avctx, AV_LOG_ERROR, " %d %td %td bytes left\n",
-            bitstream_size - (get_bits_count(&f->gb)+31)/32*4,
-            -(((const char*)f->bytestream - (const char*)buf + 3)&~3) + (extra + bitstream_size + wordstream_size + bytestream_size),
-            -(((const char*)f->wordstream - (const char*)buf + 2)&~2) + (extra + bitstream_size + wordstream_size)
-        );
-
     return 0;
 }
 
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 6d4489c2a4..0b9405ff4d 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -1029,13 +1029,12 @@ typedef struct AVFrame {
      */
     int quality;
 
+#if FF_API_AVFRAME_AGE
     /**
-     * buffer age (1->was last buffer and dint change, 2->..., ...).
-     * Set to INT_MAX if the buffer has not been used yet.
-     * - encoding: unused
-     * - decoding: MUST be set by get_buffer() for video.
+     * @deprecated unused
      */
-    int age;
+    attribute_deprecated int age;
+#endif
 
     /**
      * is this picture used as reference
diff --git a/libavcodec/internal.h b/libavcodec/internal.h
index 352be67854..13deb87120 100644
--- a/libavcodec/internal.h
+++ b/libavcodec/internal.h
@@ -30,7 +30,6 @@
 #include "avcodec.h"
 
 typedef struct InternalBuffer {
-    int last_pic_num;
     uint8_t *base[AV_NUM_DATA_POINTERS];
     uint8_t *data[AV_NUM_DATA_POINTERS];
     int linesize[AV_NUM_DATA_POINTERS];
diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index 98a771c463..0f26701b42 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -263,9 +263,9 @@ static int alloc_frame_buffer(MpegEncContext *s, Picture *pic)
     else
         r = avcodec_default_get_buffer(s->avctx, (AVFrame *) pic);
 
-    if (r < 0 || !pic->f.age || !pic->f.type || !pic->f.data[0]) {
-        av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed (%d %d %d %p)\n",
-               r, pic->f.age, pic->f.type, pic->f.data[0]);
+    if (r < 0 || !pic->f.type || !pic->f.data[0]) {
+        av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed (%d %d %p)\n",
+               r, pic->f.type, pic->f.data[0]);
         av_freep(&pic->f.hwaccel_picture_private);
         return -1;
     }
@@ -369,15 +369,6 @@ int ff_alloc_picture(MpegEncContext *s, Picture *pic, int shared)
                           1 * sizeof(AVPanScan), fail)
     }
 
-    /* It might be nicer if the application would keep track of these
-     * but it would require an API change. */
-    memmove(s->prev_pict_types + 1, s->prev_pict_types,
-            PREV_PICT_TYPES_BUFFER_SIZE-1);
-    s->prev_pict_types[0] =  s->dropable ? AV_PICTURE_TYPE_B : s->pict_type;
-    if (pic->f.age < PREV_PICT_TYPES_BUFFER_SIZE &&
-        s->prev_pict_types[pic->f.age] == AV_PICTURE_TYPE_B)
-        pic->f.age = INT_MAX; // Skipped MBs in B-frames are quite rare in MPEG-1/2
-                              // and it is a bit tricky to skip them anyway.
     pic->owner2 = s;
 
     return 0;
@@ -574,9 +565,6 @@ int ff_mpeg_update_thread_context(AVCodecContext *dst,
     s->current_picture_ptr = REBASE_PICTURE(s1->current_picture_ptr, s, s1);
     s->next_picture_ptr    = REBASE_PICTURE(s1->next_picture_ptr,    s, s1);
 
-    memcpy(s->prev_pict_types, s1->prev_pict_types,
-           PREV_PICT_TYPES_BUFFER_SIZE);
-
     // Error/bug resilience
     s->next_p_frame_damaged = s1->next_p_frame_damaged;
     s->workaround_bugs      = s1->workaround_bugs;
@@ -837,7 +825,6 @@ av_cold int MPV_common_init(MpegEncContext *s)
         /* init macroblock skip table */
         FF_ALLOCZ_OR_GOTO(s->avctx, s->mbskip_table, mb_array_size + 2, fail);
         // Note the + 1 is for  a quicker mpeg4 slice_end detection
-        FF_ALLOCZ_OR_GOTO(s->avctx, s->prev_pict_types, PREV_PICT_TYPES_BUFFER_SIZE, fail);
 
         s->parse_context.state = -1;
         if ((s->avctx->debug & (FF_DEBUG_VIS_QP | FF_DEBUG_VIS_MB_TYPE)) ||
@@ -928,7 +915,6 @@ void MPV_common_end(MpegEncContext *s)
     av_freep(&s->pred_dir_table);
 
     av_freep(&s->mbskip_table);
-    av_freep(&s->prev_pict_types);
     av_freep(&s->bitstream_buffer);
     s->allocated_bitstream_buffer_size = 0;
 
@@ -2201,24 +2187,13 @@ void MPV_decode_mb_internal(MpegEncContext *s, DCTELEM block[12][64],
         /* skip only during decoding as we might trash the buffers during encoding a bit */
         if(!s->encoding){
             uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy];
-            const int age = s->current_picture.f.age;
-
-            assert(age);
 
             if (s->mb_skipped) {
                 s->mb_skipped= 0;
                 assert(s->pict_type!=AV_PICTURE_TYPE_I);
-
-                (*mbskip_ptr) ++; /* indicate that this time we skipped it */
-                if(*mbskip_ptr >99) *mbskip_ptr= 99;
-
-                /* if previous was skipped too, then nothing to do !  */
-                if (*mbskip_ptr >= age && s->current_picture.f.reference){
-                    return;
-                }
+                *mbskip_ptr = 1;
             } else if(!s->current_picture.f.reference) {
-                (*mbskip_ptr) ++; /* increase counter so the age can be compared cleanly */
-                if(*mbskip_ptr >99) *mbskip_ptr= 99;
+                *mbskip_ptr = 1;
             } else{
                 *mbskip_ptr = 0; /* not skipped */
             }
diff --git a/libavcodec/mpegvideo.h b/libavcodec/mpegvideo.h
index 3f7f7865fe..b0b21c7779 100644
--- a/libavcodec/mpegvideo.h
+++ b/libavcodec/mpegvideo.h
@@ -311,8 +311,6 @@ typedef struct MpegEncContext {
     uint8_t *coded_block;          ///< used for coded block pattern prediction (msmpeg4v3, wmv1)
     int16_t (*ac_val_base)[16];
     int16_t (*ac_val[3])[16];      ///< used for for mpeg4 AC prediction, all 3 arrays must be continuous
-    uint8_t *prev_pict_types;     ///< previous picture types in bitstream order, used for mb skip
-#define PREV_PICT_TYPES_BUFFER_SIZE 256
     int mb_skipped;                ///< MUST BE SET only during DECODING
     uint8_t *mbskip_table;        /**< used to avoid copy if macroblock skipped (for black regions for example)
                                    and used for b-frame encoding & decoding (contains skip table of next P Frame) */
diff --git a/libavcodec/pthread.c b/libavcodec/pthread.c
index 2be54d8d0a..bca01edef5 100644
--- a/libavcodec/pthread.c
+++ b/libavcodec/pthread.c
@@ -868,13 +868,6 @@ int ff_thread_get_buffer(AVCodecContext *avctx, AVFrame *f)
 
     pthread_mutex_unlock(&p->parent->buffer_mutex);
 
-    /*
-     * Buffer age is difficult to keep track of between
-     * multiple threads, and the optimizations it allows
-     * are not worth the effort. It is disabled for now.
-     */
-    f->age = INT_MAX;
-
     return err;
 }
 
diff --git a/libavcodec/tmv.c b/libavcodec/tmv.c
index 424cddf84d..7eb9b6903a 100644
--- a/libavcodec/tmv.c
+++ b/libavcodec/tmv.c
@@ -34,14 +34,6 @@ typedef struct TMVContext {
     AVFrame pic;
 } TMVContext;
 
-static av_cold int tmv_decode_init(AVCodecContext *avctx)
-{
-    TMVContext *tmv = avctx->priv_data;
-
-    avcodec_get_frame_defaults(&tmv->pic);
-    return 0;
-}
-
 static int tmv_decode_frame(AVCodecContext *avctx, void *data,
                             int *data_size, AVPacket *avpkt)
 {
@@ -90,6 +82,14 @@ static int tmv_decode_frame(AVCodecContext *avctx, void *data,
     return avpkt->size;
 }
 
+static av_cold int tmv_decode_init(AVCodecContext *avctx)
+{
+    TMVContext *tmv = avctx->priv_data;
+    avctx->pix_fmt = PIX_FMT_PAL8;
+    avcodec_get_frame_defaults(&tmv->pic);
+    return 0;
+}
+
 static av_cold int tmv_decode_close(AVCodecContext *avctx)
 {
     TMVContext *tmv = avctx->priv_data;
diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index ef5e1a78f9..af872a70e7 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -373,7 +373,6 @@ static int video_get_buffer(AVCodecContext *s, AVFrame *pic)
     int w= s->width;
     int h= s->height;
     InternalBuffer *buf;
-    int *picture_number;
     AVCodecInternal *avci = s->internal;
 
     if(pic->data[0]!=NULL) {
@@ -394,8 +393,6 @@ static int video_get_buffer(AVCodecContext *s, AVFrame *pic)
     }
 
     buf = &avci->buffer[avci->buffer_count];
-    picture_number = &(avci->buffer[INTERNAL_BUFFER_SIZE]).last_pic_num; //FIXME ugly hack
-    (*picture_number)++;
 
     if(buf->base[0] && (buf->width != w || buf->height != h || buf->pix_fmt != s->pix_fmt)){
         if(s->active_thread_type&FF_THREAD_FRAME) {
@@ -409,10 +406,7 @@ static int video_get_buffer(AVCodecContext *s, AVFrame *pic)
         }
     }
 
-    if(buf->base[0]){
-        pic->age= *picture_number - buf->last_pic_num;
-        buf->last_pic_num= *picture_number;
-    }else{
+    if (!buf->base[0]) {
         int h_chroma_shift, v_chroma_shift;
         int size[4] = {0};
         int tmpsize;
@@ -451,7 +445,6 @@ static int video_get_buffer(AVCodecContext *s, AVFrame *pic)
             size[i] = picture.data[i+1] - picture.data[i];
         size[i] = tmpsize - (picture.data[i] - picture.data[0]);
 
-        buf->last_pic_num= -256*256*256*64;
         memset(buf->base, 0, sizeof(buf->base));
         memset(buf->data, 0, sizeof(buf->data));
 
@@ -480,7 +473,6 @@ static int video_get_buffer(AVCodecContext *s, AVFrame *pic)
         buf->width  = s->width;
         buf->height = s->height;
         buf->pix_fmt= s->pix_fmt;
-        pic->age= 256*256*256*64;
     }
     pic->type= FF_BUFFER_TYPE_INTERNAL;
 
diff --git a/libavcodec/version.h b/libavcodec/version.h
index a71e02e75e..360068a95f 100644
--- a/libavcodec/version.h
+++ b/libavcodec/version.h
@@ -22,7 +22,7 @@
 
 #define LIBAVCODEC_VERSION_MAJOR 53
 #define LIBAVCODEC_VERSION_MINOR 46
-#define LIBAVCODEC_VERSION_MICRO  0
+#define LIBAVCODEC_VERSION_MICRO  1
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
                                                LIBAVCODEC_VERSION_MINOR, \
@@ -120,5 +120,8 @@
 #define FF_API_OLD_TIMECODE (LIBAVCODEC_VERSION_MAJOR < 54)
 #endif
 
+#ifndef FF_API_AVFRAME_AGE
+#define FF_API_AVFRAME_AGE (LIBAVCODEC_VERSION_MAJOR < 54)
+#endif
 
 #endif /* AVCODEC_VERSION_H */