Merge remote-tracking branch 'qatar/master'

* qatar/master: (32 commits)
  doc: create separate section for audio encoders
  swscale: Remove orphaned, commented-out function declaration.
  swscale: Eliminate rgb24toyv12_c() duplication.
  Remove h263_msmpeg4 from MpegEncContext.
  APIchanges: Fill in git hash for fps_probe_size (30315a8)
  avformat: Add fpsprobesize as an AVOption.
  avoptions: Return explicitly NAN or {0,0} if the option isn't found
  rtmp: Reindent
  rtmp: Don't try to do av_malloc(0)
  tty: replace AVFormatParameters.sample_rate abuse with a private option.
  Fix end time of last chapter in compute_chapters_end
  ffmpeg: get rid of useless AVInputStream.nb_streams.
  ffmpeg: simplify managing input files and streams
  ffmpeg: purge redundant AVInputStream.index.
  lavf: deprecate AVFormatParameters.channel.
  libdc1394: add a private option for channel.
  dv1394: add a private option for channel.
  v4l2: reindent.
  v4l2: add a private option for channel.
  lavf: deprecate AVFormatParameters.standard.
  ...

Conflicts:
	doc/APIchanges
	doc/encoders.texi
	ffmpeg.c
	libavdevice/alsa-audio.h
	libavformat/version.h
	libavutil/opt.c
	libswscale/rgb2rgb.h
	libswscale/rgb2rgb_template.c

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

11 files changed, 114 insertions, 22 deletions

diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index fc74444e92..1607a3092b 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -228,17 +228,20 @@ typedef struct AVProbeData {
 
 typedef struct AVFormatParameters {
     AVRational time_base;
-    int sample_rate;
-    int channels;
+#if FF_API_FORMAT_PARAMETERS
+    attribute_deprecated int sample_rate;
+    attribute_deprecated int channels;
+#endif
     int width;
     int height;
     enum PixelFormat pix_fmt;
-    int channel; /**< Used to select DV channel. */
-    const char *standard; /**< TV standard, NTSC, PAL, SECAM */
-    unsigned int mpeg2ts_raw:1;  /**< Force raw MPEG-2 transport stream output, if possible. */
-    unsigned int mpeg2ts_compute_pcr:1; /**< Compute exact PCR for each transport
-                                            stream packet (only meaningful if
-                                            mpeg2ts_raw is TRUE). */
+#if FF_API_FORMAT_PARAMETERS
+    attribute_deprecated int channel; /**< Used to select DV channel. */
+    attribute_deprecated const char *standard; /**< deprecated, use demuxer-specific options instead. */
+    attribute_deprecated unsigned int mpeg2ts_raw:1;  /**< deprecated, use mpegtsraw demuxer */
+    /**< deprecated, use mpegtsraw demuxer-specific options instead */
+    attribute_deprecated unsigned int mpeg2ts_compute_pcr:1;
+#endif
     unsigned int initial_pause:1;       /**< Do not begin to play the stream
                                             immediately (RTSP only). */
     unsigned int prealloced_context:1;
@@ -824,6 +827,11 @@ typedef struct AVFormatContext {
      * - decoding: Unused.
      */
     int64_t start_time_realtime;
+
+    /**
+     * decoding: number of frames used to probe fps
+     */
+    int fps_probe_size;
 } AVFormatContext;
 
 typedef struct AVPacketList {
diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c
index f59b7c2ed2..ea11a3eaf8 100644
--- a/libavformat/mpegts.c
+++ b/libavformat/mpegts.c
@@ -25,6 +25,8 @@
 
 #include "libavutil/crc.h"
 #include "libavutil/intreadwrite.h"
+#include "libavutil/log.h"
+#include "libavutil/opt.h"
 #include "libavcodec/bytestream.h"
 #include "avformat.h"
 #include "mpegts.h"
@@ -86,6 +88,7 @@ struct Program {
 };
 
 struct MpegTSContext {
+    const AVClass *class;
     /* user data */
     AVFormatContext *stream;
     /** raw packet size, including FEC if present            */
@@ -122,6 +125,19 @@ struct MpegTSContext {
     MpegTSFilter *pids[NB_PID_MAX];
 };
 
+static const AVOption options[] = {
+    {"compute_pcr", "Compute exact PCR for each transport stream packet.", offsetof(MpegTSContext, mpeg2ts_compute_pcr), FF_OPT_TYPE_INT,
+     {.dbl = 0}, 0, 1, AV_OPT_FLAG_DECODING_PARAM },
+    { NULL },
+};
+
+static const AVClass mpegtsraw_class = {
+    .class_name = "mpegtsraw demuxer",
+    .item_name  = av_default_item_name,
+    .option     = options,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
 /* TS stream handling */
 
 enum MpegTSState {
@@ -1455,13 +1471,16 @@ static int mpegts_read_header(AVFormatContext *s,
     int len;
     int64_t pos;
 
+#if FF_API_FORMAT_PARAMETERS
     if (ap) {
-        ts->mpeg2ts_compute_pcr = ap->mpeg2ts_compute_pcr;
+        if (ap->mpeg2ts_compute_pcr)
+            ts->mpeg2ts_compute_pcr = ap->mpeg2ts_compute_pcr;
         if(ap->mpeg2ts_raw){
             av_log(s, AV_LOG_ERROR, "use mpegtsraw_demuxer!\n");
             return -1;
         }
     }
+#endif
 
     /* read the first 1024 bytes to get packet size */
     pos = avio_tell(pb);
@@ -1883,4 +1902,5 @@ AVInputFormat ff_mpegtsraw_demuxer = {
 #ifdef USE_SYNCPOINT_SEARCH
     .read_seek2 = read_seek2,
 #endif
+    .priv_class = &mpegtsraw_class,
 };
diff --git a/libavformat/options.c b/libavformat/options.c
index 5e0e3a428d..6281b7fbcd 100644
--- a/libavformat/options.c
+++ b/libavformat/options.c
@@ -60,6 +60,7 @@ static const AVOption options[]={
 {"fdebug", "print specific debug info", OFFSET(debug), FF_OPT_TYPE_FLAGS, {.dbl = DEFAULT }, 0, INT_MAX, E|D, "fdebug"},
 {"ts", NULL, 0, FF_OPT_TYPE_CONST, {.dbl = FF_FDEBUG_TS }, INT_MIN, INT_MAX, E|D, "fdebug"},
 {"max_delay", "maximum muxing or demuxing delay in microseconds", OFFSET(max_delay), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, 0, INT_MAX, E|D},
+{"fpsprobesize", "number of frames used to probe fps", OFFSET(fps_probe_size), FF_OPT_TYPE_INT, -1, -1, INT_MAX-1, D},
 {NULL},
 };
 
diff --git a/libavformat/pcmdec.c b/libavformat/pcmdec.c
index 6441d89c5c..ab3b739ccb 100644
--- a/libavformat/pcmdec.c
+++ b/libavformat/pcmdec.c
@@ -50,7 +50,7 @@ static int raw_read_packet(AVFormatContext *s, AVPacket *pkt)
 AVInputFormat ff_pcm_ ## name ## _demuxer = {\
     #name,\
     NULL_IF_CONFIG_SMALL(long_name),\
-    0,\
+    sizeof(RawAudioDemuxerContext),\
     NULL,\
     ff_raw_read_header,\
     raw_read_packet,\
@@ -59,6 +59,7 @@ AVInputFormat ff_pcm_ ## name ## _demuxer = {\
     .flags= AVFMT_GENERIC_INDEX,\
     .extensions = ext,\
     .value = codec,\
+    .priv_class = &ff_rawaudio_demuxer_class,\
 };
 
 PCMDEF(f64be, "PCM 64 bit floating-point big-endian format",
diff --git a/libavformat/rawdec.c b/libavformat/rawdec.c
index 0387e3d266..daacae0c24 100644
--- a/libavformat/rawdec.c
+++ b/libavformat/rawdec.c
@@ -23,6 +23,7 @@
 #include "avformat.h"
 #include "avio_internal.h"
 #include "rawdec.h"
+#include "libavutil/opt.h"
 
 /* raw input */
 int ff_raw_read_header(AVFormatContext *s, AVFormatParameters *ap)
@@ -43,15 +44,28 @@ int ff_raw_read_header(AVFormatContext *s, AVFormatParameters *ap)
         st->codec->codec_id = id;
 
         switch(st->codec->codec_type) {
-        case AVMEDIA_TYPE_AUDIO:
-            st->codec->sample_rate = ap->sample_rate;
-            if(ap->channels) st->codec->channels = ap->channels;
-            else             st->codec->channels = 1;
+        case AVMEDIA_TYPE_AUDIO: {
+            RawAudioDemuxerContext *s1 = s->priv_data;
+
+#if FF_API_FORMAT_PARAMETERS
+            if (ap->sample_rate)
+                st->codec->sample_rate = ap->sample_rate;
+            if (ap->channels)
+                st->codec->channels    = ap->channels;
+            else st->codec->channels   = 1;
+#endif
+
+            if (s1->sample_rate)
+                st->codec->sample_rate = s1->sample_rate;
+            if (s1->channels)
+                st->codec->channels    = s1->channels;
+
             st->codec->bits_per_coded_sample = av_get_bits_per_sample(st->codec->codec_id);
             assert(st->codec->bits_per_coded_sample > 0);
             st->codec->block_align = st->codec->bits_per_coded_sample*st->codec->channels/8;
             av_set_pts_info(st, 64, 1, st->codec->sample_rate);
             break;
+            }
         case AVMEDIA_TYPE_VIDEO:
             if(ap->time_base.num)
                 av_set_pts_info(st, 64, ap->time_base.num, ap->time_base.den);
@@ -139,17 +153,31 @@ int ff_raw_video_read_header(AVFormatContext *s,
 
 /* Note: Do not forget to add new entries to the Makefile as well. */
 
+static const AVOption audio_options[] = {
+    { "sample_rate", "", offsetof(RawAudioDemuxerContext, sample_rate), FF_OPT_TYPE_INT, {.dbl = 0}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
+    { "channels",    "", offsetof(RawAudioDemuxerContext, channels),    FF_OPT_TYPE_INT, {.dbl = 0}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
+    { NULL },
+};
+
+const AVClass ff_rawaudio_demuxer_class = {
+    .class_name     = "rawaudio demuxer",
+    .item_name      = av_default_item_name,
+    .option         = audio_options,
+    .version        = LIBAVUTIL_VERSION_INT,
+};
+
 #if CONFIG_G722_DEMUXER
 AVInputFormat ff_g722_demuxer = {
     "g722",
     NULL_IF_CONFIG_SMALL("raw G.722"),
-    0,
+    sizeof(RawAudioDemuxerContext),
     NULL,
     ff_raw_read_header,
     ff_raw_read_partial_packet,
     .flags= AVFMT_GENERIC_INDEX,
     .extensions = "g722,722",
     .value = CODEC_ID_ADPCM_G722,
+    .priv_class = &ff_rawaudio_demuxer_class,
 };
 #endif
 
diff --git a/libavformat/rawdec.h b/libavformat/rawdec.h
index 0b0cf1beef..a989ea9ce6 100644
--- a/libavformat/rawdec.h
+++ b/libavformat/rawdec.h
@@ -23,6 +23,15 @@
 #define AVFORMAT_RAWDEC_H
 
 #include "avformat.h"
+#include "libavutil/log.h"
+
+typedef struct RawAudioDemuxerContext {
+    AVClass *class;
+    int sample_rate;
+    int channels;
+} RawAudioDemuxerContext;
+
+extern const AVClass ff_rawaudio_demuxer_class;
 
 int ff_raw_read_header(AVFormatContext *s, AVFormatParameters *ap);
 
diff --git a/libavformat/rtmppkt.c b/libavformat/rtmppkt.c
index 53c6a5fe19..4b6d549f74 100644
--- a/libavformat/rtmppkt.c
+++ b/libavformat/rtmppkt.c
@@ -233,9 +233,11 @@ int ff_rtmp_packet_write(URLContext *h, RTMPPacket *pkt,
 int ff_rtmp_packet_create(RTMPPacket *pkt, int channel_id, RTMPPacketType type,
                           int timestamp, int size)
 {
-    pkt->data = av_malloc(size);
-    if (!pkt->data)
-        return AVERROR(ENOMEM);
+    if (size) {
+        pkt->data = av_malloc(size);
+        if (!pkt->data)
+            return AVERROR(ENOMEM);
+    }
     pkt->data_size  = size;
     pkt->channel_id = channel_id;
     pkt->type       = type;
diff --git a/libavformat/rtmpproto.c b/libavformat/rtmpproto.c
index b10cfb6ca7..b8714c9ffa 100644
--- a/libavformat/rtmpproto.c
+++ b/libavformat/rtmpproto.c
@@ -683,7 +683,7 @@ static int get_packet(URLContext *s, int for_header)
         return AVERROR_EOF;
 
     for (;;) {
-        RTMPPacket rpkt;
+        RTMPPacket rpkt = { 0 };
         if ((ret = ff_rtmp_packet_read(rt->stream, &rpkt,
                                        rt->chunk_size, rt->prev_pkt[0])) <= 0) {
             if (ret == 0) {
diff --git a/libavformat/tty.c b/libavformat/tty.c
index b288d15393..171099d3cb 100644
--- a/libavformat/tty.c
+++ b/libavformat/tty.c
@@ -26,12 +26,13 @@
 
 #include "libavutil/intreadwrite.h"
 #include "libavutil/avstring.h"
+#include "libavutil/log.h"
+#include "libavutil/opt.h"
 #include "avformat.h"
 #include "sauce.h"
 
-#define LINE_RATE 6000 /* characters per second */
-
 typedef struct {
+    AVClass *class;
     int chars_per_frame;
     uint64_t fsize;  /**< file size less metadata buffer */
 } TtyDemuxContext;
@@ -86,7 +87,11 @@ static int read_header(AVFormatContext *avctx,
     }
 
     /* simulate tty display speed */
-    s->chars_per_frame = FFMAX(av_q2d(st->time_base) * (ap->sample_rate ? ap->sample_rate : LINE_RATE), 1);
+#if FF_API_FORMAT_PARAMETERS
+    if (ap->sample_rate)
+        s->chars_per_frame = ap->sample_rate;
+#endif
+    s->chars_per_frame = FFMAX(av_q2d(st->time_base)*s->chars_per_frame, 1);
 
     if (avctx->pb->seekable) {
         s->fsize = avio_size(avctx->pb);
@@ -124,6 +129,18 @@ static int read_packet(AVFormatContext *avctx, AVPacket *pkt)
     return 0;
 }
 
+static const AVOption options[] = {
+    { "chars_per_frame", "", offsetof(TtyDemuxContext, chars_per_frame), FF_OPT_TYPE_INT, {.dbl = 6000}, 1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM},
+    { NULL },
+};
+
+static const AVClass tty_demuxer_class = {
+    .class_name     = "TTY demuxer",
+    .item_name      = av_default_item_name,
+    .option         = options,
+    .version        = LIBAVUTIL_VERSION_INT,
+};
+
 AVInputFormat ff_tty_demuxer = {
     .name           = "tty",
     .long_name      = NULL_IF_CONFIG_SMALL("Tele-typewriter"),
@@ -131,4 +148,5 @@ AVInputFormat ff_tty_demuxer = {
     .read_header    = read_header,
     .read_packet    = read_packet,
     .extensions     = "ans,art,asc,diz,ice,nfo,txt,vt",
+    .priv_class     = &tty_demuxer_class,
 };
diff --git a/libavformat/utils.c b/libavformat/utils.c
index 20b21f29db..3c9a89dc64 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -2272,6 +2272,8 @@ int av_find_stream_info(AVFormatContext *ic)
                the correct fps */
             if (av_q2d(st->time_base) > 0.0005)
                 fps_analyze_framecount *= 2;
+            if (ic->fps_probe_size >= 0)
+                fps_analyze_framecount = ic->fps_probe_size;
             /* variable fps and no guess at the real fps */
             if(   tb_unreliable(st->codec) && !(st->r_frame_rate.num && st->avg_frame_rate.num)
                && st->info->duration_count < fps_analyze_framecount
diff --git a/libavformat/version.h b/libavformat/version.h
index 76b86ed323..fe8e85dadf 100644
--- a/libavformat/version.h
+++ b/libavformat/version.h
@@ -71,5 +71,8 @@
 #ifndef FF_API_ALLOC_OUTPUT_CONTEXT
 #define FF_API_ALLOC_OUTPUT_CONTEXT    (LIBAVFORMAT_VERSION_MAJOR < 54)
 #endif
+#ifndef FF_API_FORMAT_PARAMETERS
+#define FF_API_FORMAT_PARAMETERS       (LIBAVFORMAT_VERSION_MAJOR < 54)
+#endif
 
 #endif /* AVFORMAT_VERSION_H */