Support more AVC-Intra files

Followup to http://thread.gmane.org/gmane.comp.video.ffmpeg.devel/151321
patch by Reimar and Thomas Mundt fixes some AVC-Intra files from
different tickets.
It does not fix http://samples.ffmpeg.org/ffmpeg-
bugs/trac/ticket524/AVCI50.mov

Authors of this commit are: Reimar and Thomas Mundt
Patch and commit message mostly taken from ffmpeg-devel, mail by Carl
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavformat/internal.h

@@ -385,4 +385,9 @@ enum AVCodecID ff_get_pcm_codec_id(int bps, int flt, int be, int sflags);
  */
 AVRational ff_choose_timebase(AVFormatContext *s, AVStream *st, int min_precission);
 
+/**
+ * Generate standard extradata for AVC-Intra based on width/height and field order.
+ */
+void ff_generate_avci_extradata(AVStream *st);
+
 #endif /* AVFORMAT_INTERNAL_H */

libavformat/isom.c

@@ -166,6 +166,7 @@ const AVCodecTag ff_codec_movvideo_tags[] = {
     { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', '3') }, /* AVC-Intra 100M 1080p24/30/60 */
     { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', '5') }, /* AVC-Intra 100M 1080i50 */
     { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', '6') }, /* AVC-Intra 100M 1080i60 */
+    { AV_CODEC_ID_H264, MKTAG('A', 'V', 'i', 'n') }, /* AVC-Intra with implicit SPS/PPS */
 
     { AV_CODEC_ID_MPEG1VIDEO, MKTAG('m', '1', 'v', '1') }, /* Apple MPEG-1 Camcorder */
     { AV_CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'e', 'g') }, /* MPEG */

libavformat/mov.c

@@ -2251,6 +2251,12 @@ static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
 #endif
     }
 
+    // done for ai5q, ai52, ai55, ai1q, ai12 and ai15.
+    if (!st->codec->extradata_size && st->codec->codec_id == AV_CODEC_ID_H264 &&
+        st->codec->codec_tag != MKTAG('a', 'v', 'c', '1')) {
+        ff_generate_avci_extradata(st);
+    }
+
     switch (st->codec->codec_id) {
 #if CONFIG_H261_DECODER
     case AV_CODEC_ID_H261:

libavformat/mxfdec.c

@@ -1506,11 +1506,6 @@ static int mxf_parse_structural_metadata(MXFContext *mxf)
         /* TODO: drop PictureEssenceCoding and SoundEssenceCompression, only check EssenceContainer */
         codec_ul = mxf_get_codec_ul(ff_mxf_codec_uls, &descriptor->essence_codec_ul);
         st->codec->codec_id = (enum AVCodecID)codec_ul->id;
-        if (descriptor->extradata) {
-            st->codec->extradata = av_mallocz(descriptor->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
-            if (st->codec->extradata)
-                memcpy(st->codec->extradata, descriptor->extradata, descriptor->extradata_size);
-        }
         if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
             source_track->intra_only = mxf_is_intra_only(descriptor);
             container_ul = mxf_get_codec_ul(mxf_picture_essence_container_uls, essence_container_ul);
@@ -1594,6 +1589,13 @@ static int mxf_parse_structural_metadata(MXFContext *mxf)
                 st->need_parsing = AVSTREAM_PARSE_FULL;
             }
         }
+        if (descriptor->extradata) {
+            st->codec->extradata = av_mallocz(descriptor->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
+            if (st->codec->extradata)
+                memcpy(st->codec->extradata, descriptor->extradata, descriptor->extradata_size);
+        } else if(st->codec->codec_id == CODEC_ID_H264) {
+            ff_generate_avci_extradata(st);
+        }
         if (st->codec->codec_type != AVMEDIA_TYPE_DATA && (*essence_container_ul)[15] > 0x01) {
             /* TODO: decode timestamps */
             st->need_parsing = AVSTREAM_PARSE_TIMESTAMPS;

libavformat/utils.c

@@ -4243,3 +4243,98 @@ int avformat_match_stream_specifier(AVFormatContext *s, AVStream *st,
     av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec);
     return AVERROR(EINVAL);
 }
+
+void ff_generate_avci_extradata(AVStream *st)
+{
+    static const uint8_t avci100_1080p_extradata[] = {
+        // SPS
+        0x00, 0x00, 0x00, 0x01, 0x67, 0x7a, 0x10, 0x29,
+        0xb6, 0xd4, 0x20, 0x22, 0x33, 0x19, 0xc6, 0x63,
+        0x23, 0x21, 0x01, 0x11, 0x98, 0xce, 0x33, 0x19,
+        0x18, 0x21, 0x02, 0x56, 0xb9, 0x3d, 0x7d, 0x7e,
+        0x4f, 0xe3, 0x3f, 0x11, 0xf1, 0x9e, 0x08, 0xb8,
+        0x8c, 0x54, 0x43, 0xc0, 0x78, 0x02, 0x27, 0xe2,
+        0x70, 0x1e, 0x30, 0x10, 0x10, 0x14, 0x00, 0x00,
+        0x03, 0x00, 0x04, 0x00, 0x00, 0x03, 0x00, 0xca,
+        0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        // PPS
+        0x00, 0x00, 0x00, 0x01, 0x68, 0xce, 0x33, 0x48,
+        0xd0
+    };
+    static const uint8_t avci100_1080i_extradata[] = {
+        // SPS
+        0x00, 0x00, 0x00, 0x01, 0x67, 0x7a, 0x10, 0x29,
+        0xb6, 0xd4, 0x20, 0x22, 0x33, 0x19, 0xc6, 0x63,
+        0x23, 0x21, 0x01, 0x11, 0x98, 0xce, 0x33, 0x19,
+        0x18, 0x21, 0x03, 0x3a, 0x46, 0x65, 0x6a, 0x65,
+        0x24, 0xad, 0xe9, 0x12, 0x32, 0x14, 0x1a, 0x26,
+        0x34, 0xad, 0xa4, 0x41, 0x82, 0x23, 0x01, 0x50,
+        0x2b, 0x1a, 0x24, 0x69, 0x48, 0x30, 0x40, 0x2e,
+        0x11, 0x12, 0x08, 0xc6, 0x8c, 0x04, 0x41, 0x28,
+        0x4c, 0x34, 0xf0, 0x1e, 0x01, 0x13, 0xf2, 0xe0,
+        0x3c, 0x60, 0x20, 0x20, 0x28, 0x00, 0x00, 0x03,
+        0x00, 0x08, 0x00, 0x00, 0x03, 0x01, 0x94, 0x00,
+        // PPS
+        0x00, 0x00, 0x00, 0x01, 0x68, 0xce, 0x33, 0x48,
+        0xd0
+    };
+    static const uint8_t avci50_1080i_extradata[] = {
+        // SPS
+        0x00, 0x00, 0x00, 0x01, 0x67, 0x6e, 0x10, 0x28,
+        0xa6, 0xd4, 0x20, 0x32, 0x33, 0x0c, 0x71, 0x18,
+        0x88, 0x62, 0x10, 0x19, 0x19, 0x86, 0x38, 0x8c,
+        0x44, 0x30, 0x21, 0x02, 0x56, 0x4e, 0x6e, 0x61,
+        0x87, 0x3e, 0x73, 0x4d, 0x98, 0x0c, 0x03, 0x06,
+        0x9c, 0x0b, 0x73, 0xe6, 0xc0, 0xb5, 0x18, 0x63,
+        0x0d, 0x39, 0xe0, 0x5b, 0x02, 0xd4, 0xc6, 0x19,
+        0x1a, 0x79, 0x8c, 0x32, 0x34, 0x24, 0xf0, 0x16,
+        0x81, 0x13, 0xf7, 0xff, 0x80, 0x01, 0x80, 0x02,
+        0x71, 0x80, 0x80, 0x80, 0xa0, 0x00, 0x00, 0x03,
+        0x00, 0x20, 0x00, 0x00, 0x06, 0x50, 0x80, 0x00,
+        // PPS
+        0x00, 0x00, 0x00, 0x01, 0x68, 0xee, 0x31, 0x12,
+        0x11
+    };
+    static const uint8_t avci100_720p_extradata[] = {
+        // SPS
+        0x00, 0x00, 0x00, 0x01, 0x67, 0x7a, 0x10, 0x29,
+        0xb6, 0xd4, 0x20, 0x2a, 0x33, 0x1d, 0xc7, 0x62,
+        0xa1, 0x08, 0x40, 0x54, 0x66, 0x3b, 0x8e, 0xc5,
+        0x42, 0x02, 0x10, 0x25, 0x64, 0x2c, 0x89, 0xe8,
+        0x85, 0xe4, 0x21, 0x4b, 0x90, 0x83, 0x06, 0x95,
+        0xd1, 0x06, 0x46, 0x97, 0x20, 0xc8, 0xd7, 0x43,
+        0x08, 0x11, 0xc2, 0x1e, 0x4c, 0x91, 0x0f, 0x01,
+        0x40, 0x16, 0xec, 0x07, 0x8c, 0x04, 0x04, 0x05,
+        0x00, 0x00, 0x03, 0x00, 0x01, 0x00, 0x00, 0x03,
+        0x00, 0x64, 0x84, 0x00, 0x00, 0x00, 0x00, 0x00,
+        // PPS
+        0x00, 0x00, 0x00, 0x01, 0x68, 0xce, 0x31, 0x12,
+        0x11
+    };
+    int size = 0;
+    const uint8_t *data = 0;
+    if (st->codec->width == 1920) {
+        if (st->codec->field_order == AV_FIELD_PROGRESSIVE) {
+            data = avci100_1080p_extradata;
+            size = sizeof(avci100_1080p_extradata);
+        } else {
+            data = avci100_1080i_extradata;
+            size = sizeof(avci100_1080i_extradata);
+        }
+    } else if (st->codec->width == 1440) {
+        data = avci50_1080i_extradata;
+        size = sizeof(avci50_1080i_extradata);
+    } else if (st->codec->width == 1280) {
+        data = avci100_720p_extradata;
+        size = sizeof(avci100_720p_extradata);
+    }
+    if (!size)
+        return;
+    av_freep(&st->codec->extradata);
+    st->codec->extradata_size = 0;
+    st->codec->extradata = av_mallocz(size + FF_INPUT_BUFFER_PADDING_SIZE);
+    if (!st->codec->extradata)
+        return;
+    memcpy(st->codec->extradata, data, size);
+    st->codec->extradata_size = size;
+}