[FFmpeg-devel] [PATCH 2/2] avformat/mxfenc: support XAVC long gop

Thomas Mundt tmundt75 at gmail.com
Thu Apr 4 17:27:17 EEST 2019


Hi Baptiste,

Am Mi., 3. Apr. 2019 um 11:23 Uhr schrieb Baptiste Coudurier <
baptiste.coudurier at gmail.com>:

> ---
>  libavformat/mxf.h    |   1 +
>  libavformat/mxfenc.c | 197 ++++++++++++++++++++++++++++++++-----------
>  2 files changed, 147 insertions(+), 51 deletions(-)
>
> diff --git a/libavformat/mxf.h b/libavformat/mxf.h
> index 4394450dea..f32124f772 100644
> --- a/libavformat/mxf.h
> +++ b/libavformat/mxf.h
> @@ -48,6 +48,7 @@ enum MXFMetadataSetType {
>      EssenceGroup,
>      TaggedValue,
>      TapeDescriptor,
> +    AVCSubDescriptor,
>  };
>
>  enum MXFFrameLayout {
> diff --git a/libavformat/mxfenc.c b/libavformat/mxfenc.c
> index 8c6db94865..1f865a0ad1 100644
> --- a/libavformat/mxfenc.c
> +++ b/libavformat/mxfenc.c
> @@ -49,7 +49,10 @@
>  #include "libavcodec/bytestream.h"
>  #include "libavcodec/dnxhddata.h"
>  #include "libavcodec/dv_profile.h"
> -#include "libavcodec/h264.h"
> +#include "libavcodec/golomb.h"
> +#include "libavcodec/h264data.h"
> +#include "libavcodec/h264_ps.h"
> +#include "libavcodec/h2645_parse.h"
>  #include "libavcodec/internal.h"
>  #include "audiointerleave.h"
>  #include "avformat.h"
> @@ -99,6 +102,7 @@ typedef struct MXFStreamContext {
>      int max_gop;             ///< maximum gop size, used by mpeg-2
> descriptor
>      int b_picture_count;     ///< maximum number of consecutive b
> pictures, used in mpeg-2 descriptor
>      int low_delay;           ///< low delay, used in mpeg-2 descriptor
> +    int avc_intra;
>  } MXFStreamContext;
>
>  typedef struct MXFContainerEssenceEntry {
> @@ -167,6 +171,7 @@ static const struct {
>  static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st);
>  static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st);
>  static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st);
> +static void mxf_write_h264_desc(AVFormatContext *s, AVStream *st);
>  static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st);
>  static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream
> *st);
>  static void mxf_write_s436m_anc_desc(AVFormatContext *s, AVStream *st);
> @@ -310,7 +315,7 @@ static const MXFContainerEssenceEntry
> mxf_essence_container_uls[] = {
>      { {
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x0D,0x01,0x03,0x01,0x02,0x10,0x60,0x01
> },
>        {
> 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00
> },
>        {
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x00,0x00,0x00
> },
> -      mxf_write_mpegvideo_desc },
> +      mxf_write_h264_desc },
>      // S436M ANC
>      { {
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x0D,0x01,0x03,0x01,0x02,0x0e,0x00,0x00
> },
>        {
> 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x17,0x01,0x02,0x00
> },
> @@ -498,6 +503,12 @@ static const MXFLocalTagPair mxf_local_tag_batch[] = {
>      { 0x8006,
> {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x08,0x00,0x00}},
> /* MaxGOP */
>      { 0x8007,
> {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0A,0x00,0x00}},
> /* ProfileAndLevel */
>      { 0x8008,
> {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x09,0x00,0x00}},
> /* BPictureCount */
> +    // Generic Descriptor
> +    { 0x8100,
> {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x09,0x06,0x01,0x01,0x04,0x06,0x10,0x00,0x00}},
> /* SubDescriptors */
> +    // AVC SubDescriptor
> +    { 0x8200,
> {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x0E,0x04,0x01,0x06,0x06,0x01,0x0E,0x00,0x00}},
> /* AVC Decoding Delay */
> +    { 0x8201,
> {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x0E,0x04,0x01,0x06,0x06,0x01,0x0A,0x00,0x00}},
> /* AVC Profile */
> +    { 0x8202,
> {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x0E,0x04,0x01,0x06,0x06,0x01,0x0D,0x00,0x00}},
> /* AVC Level */
>      // Wave Audio Essence Descriptor
>      { 0x3D09,
> {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x03,0x05,0x00,0x00,0x00}},
> /* Average Bytes Per Second */
>      { 0x3D0A,
> {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x02,0x01,0x00,0x00,0x00}},
> /* Block Align */
> @@ -1126,6 +1137,8 @@ static const UID mxf_aes3_descriptor_key      = {
> 0x06,0x0E,0x2B,0x34,0x02,0x53,
>  static const UID mxf_cdci_descriptor_key      = {
> 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x28,0x00
> };
>  static const UID mxf_generic_sound_descriptor_key = {
> 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x42,0x00
> };
>
> +static const UID mxf_avc_subdescriptor_key = {
> 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x6E,0x00
> };
> +
>  static int get_trc(UID ul, enum AVColorTransferCharacteristic trc)
>  {
>      switch (trc){
> @@ -1317,6 +1330,13 @@ static int64_t
> mxf_write_cdci_common(AVFormatContext *s, AVStream *st, const UID
>          avio_w8(pb, sc->field_dominance);
>      }
>
> +    if (st->codecpar->codec_id == AV_CODEC_ID_H264 && !sc->avc_intra) {
> +        // write avc sub descriptor ref
> +        mxf_write_local_tag(pb, 8 + 16, 0x8100);
> +        mxf_write_refs_count(pb, 1);
> +        mxf_write_uuid(pb, AVCSubDescriptor, 0);
> +    }
> +
>      return pos;
>  }
>
> @@ -1329,10 +1349,50 @@ static void mxf_update_klv_size(AVIOContext *pb,
> int64_t pos)
>      avio_seek(pb, cur_pos, SEEK_SET);
>  }
>
> +static void mxf_write_avc_subdesc(AVFormatContext *s, AVStream *st)
> +{
> +    AVIOContext *pb = s->pb;
> +    int64_t pos;
> +
> +    avio_write(pb, mxf_avc_subdescriptor_key, 16);
> +    klv_encode_ber4_length(pb, 0);
> +    pos = avio_tell(pb);
> +
> +    mxf_write_local_tag(pb, 16, 0x3C0A);
> +    mxf_write_uuid(pb, AVCSubDescriptor, 0);
> +
> +    mxf_write_local_tag(pb, 1, 0x8200);
> +    avio_w8(pb, 0xFF); // AVC Decoding Delay, unknown
> +
> +    mxf_write_local_tag(pb, 1, 0x8201);
> +    avio_w8(pb, st->codecpar->profile); // AVC Profile
> +
> +    mxf_write_local_tag(pb, 1, 0x8202);
> +    avio_w8(pb, st->codecpar->level); // AVC Level
> +
> +    mxf_update_klv_size(s->pb, pos);
> +}
> +
>  static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st)
>  {
>      int64_t pos = mxf_write_cdci_common(s, st, mxf_cdci_descriptor_key);
>      mxf_update_klv_size(s->pb, pos);
> +
> +    if (st->codecpar->codec_id == AV_CODEC_ID_H264) {
> +        mxf_write_avc_subdesc(s, st);
> +    }
> +}
> +
> +static void mxf_write_h264_desc(AVFormatContext *s, AVStream *st)
> +{
> +    MXFStreamContext *sc = st->priv_data;
> +    if (sc->avc_intra) {
> +        mxf_write_mpegvideo_desc(s, st);
> +    } else {
> +        int64_t pos = mxf_write_cdci_common(s, st,
> mxf_cdci_descriptor_key);
> +        mxf_update_klv_size(s->pb, pos);
> +        mxf_write_avc_subdesc(s, st);
> +    }
>  }
>
>  static void mxf_write_s436m_anc_desc(AVFormatContext *s, AVStream *st)
> @@ -2136,30 +2196,30 @@ static const struct {
>      int frame_size;
>      int profile;
>      uint8_t interlaced;
> -    int long_gop; // 1 or 0 when there are separate UIDs for Long GOP and
> Intra, -1 when Intra/LGOP detection can be ignored
> +    int intra_only; // 1 or 0 when there are separate UIDs for Long GOP
> and Intra, -1 when Intra/LGOP detection can be ignored
>  } mxf_h264_codec_uls[] = {
> -    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x11,0x01
> },      0,  66, 0, -1 }, // AVC Baseline, Unconstrained Coding
> +    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x11,0x01
> },      0,  66, 0, -1 }, // AVC Baseline
>      {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x20,0x01
> },      0,  77, 0, -1 }, // AVC Main
>      {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x30,0x01
> },      0,  88, 0, -1 }, // AVC Extended
>      {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x40,0x01
> },      0, 100, 0, -1 }, // AVC High
> -    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x50,0x01
> },      0, 110, 0,  1 }, // AVC High 10
> -    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x60,0x01
> },      0, 122, 0,  1 }, // AVC High 422
> -    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x70,0x01
> },      0, 244, 0,  1 }, // AVC High 444
> -    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x20,0x01
> },      0, 110, 0,  0 }, // AVC High 10 Intra
> -    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x01
> }, 232960,   0, 1,  0 }, // AVC Intra 50 1080i60
> -    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x02
> }, 281088,   0, 1,  0 }, // AVC Intra 50 1080i50
> -    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x03
> }, 232960,   0, 0,  0 }, // AVC Intra 50 1080p30
> -    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x04
> }, 281088,   0, 0,  0 }, // AVC Intra 50 1080p25
> -    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x08
> }, 116736,   0, 0,  0 }, // AVC Intra 50 720p60
> -    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x09
> }, 140800,   0, 0,  0 }, // AVC Intra 50 720p50
> -    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x30,0x01
> },      0, 122, 0,  0 }, // AVC High 422 Intra
> -    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x01
> }, 472576,   0, 1,  0 }, // AVC Intra 100 1080i60
> -    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x02
> }, 568832,   0, 1,  0 }, // AVC Intra 100 1080i50
> -    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x03
> }, 472576,   0, 0,  0 }, // AVC Intra 100 1080p30
> -    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x04
> }, 568832,   0, 0,  0 }, // AVC Intra 100 1080p25
> -    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x08
> }, 236544,   0, 0,  0 }, // AVC Intra 100 720p60
> -    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x09
> }, 284672,   0, 0,  0 }, // AVC Intra 100 720p50
> -    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x04,0x01,0x02,0x02,0x01,0x32,0x40,0x01
> },      0, 244, 0,  0 }, // AVC High 444 Intra
> +    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x50,0x01
> },      0, 110, 0,  0 }, // AVC High 10
> +    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x60,0x01
> },      0, 122, 0,  0 }, // AVC High 422
> +    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x70,0x01
> },      0, 244, 0,  0 }, // AVC High 444
> +    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x20,0x01
> },      0, 110, 0,  1 }, // AVC High 10 Intra
> +    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x01
> }, 232960, 110, 1,  1 }, // AVC High 10 Intra RP2027 Class 50 1080/59.94i
> +    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x02
> }, 281088, 110, 1,  1 }, // AVC High 10 Intra RP2027 Class 50 1080/50i
> +    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x03
> }, 232960, 110, 0,  1 }, // AVC High 10 Intra RP2027 Class 50 1080/29.97p
> +    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x04
> }, 281088, 110, 0,  1 }, // AVC High 10 Intra RP2027 Class 50 1080/25p
> +    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x08
> }, 116736, 110, 0,  1 }, // AVC High 10 Intra RP2027 Class 50 720/59.94p
> +    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x09
> }, 140800, 110, 0,  1 }, // AVC High 10 Intra RP2027 Class 50 720/50p
> +    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x30,0x01
> },      0, 122, 0,  1 }, // AVC High 422 Intra
> +    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x01
> }, 472576, 122, 1,  1 }, // AVC High 422 Intra RP2027 Class 100 1080/59.94i
> +    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x02
> }, 568832, 122, 1,  1 }, // AVC High 422 Intra RP2027 Class 100 1080/50i
> +    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x03
> }, 472576, 122, 0,  1 }, // AVC High 422 Intra RP2027 Class 100 1080/29.97p
> +    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x04
> }, 568832, 122, 0,  1 }, // AVC High 422 Intra RP2027 Class 100 1080/25p
> +    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x08
> }, 236544, 122, 0,  1 }, // AVC High 422 Intra RP2027 Class 100 720/59.94p
> +    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x09
> }, 284672, 122, 0,  1 }, // AVC High 422 Intra RP2027 Class 100 720/50p
> +    {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x04,0x01,0x02,0x02,0x01,0x32,0x40,0x01
> },      0, 244, 0,  1 }, // AVC High 444 Intra
>      {{
> 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x04,0x01,0x02,0x02,0x01,0x32,0x50,0x01
> },      0,  44, 0, -1 }, // AVC CAVLC 444
>  };
>
> @@ -2168,37 +2228,66 @@ static int mxf_parse_h264_frame(AVFormatContext
> *s, AVStream *st,
>  {
>      MXFContext *mxf = s->priv_data;
>      MXFStreamContext *sc = st->priv_data;
> -    AVCodecParameters *par = st->codecpar;
> -    static const int mxf_h264_num_codec_uls = sizeof(mxf_h264_codec_uls)
> / sizeof(mxf_h264_codec_uls[0]);
> -    const uint8_t *buf = pkt->data;
> -    const uint8_t *buf_end = pkt->data + pkt->size;
> -    uint32_t state = -1;
> -    int long_gop = 0; // assume intra when there is no SPS header
> +    int i, j, frame_size, ret, slice_type, intra_only = 0;
> +    H2645Packet hpkt = { 0 };
> +    H264ParamSets ps = { { 0 } };
>      int extra_size = 512; // support AVC Intra files without SPS/PPS
> header
> -    int i, frame_size;
> -    uint8_t uid_found;
>
> -    if (pkt->size > extra_size)
> -        buf_end -= pkt->size - extra_size; // no need to parse beyond
> SPS/PPS header
> +    ret = avpriv_h2645_packet_split(&hpkt, pkt->data, pkt->size,
> (AVCodecContext*)s, 0, 2, AV_CODEC_ID_H264, 1, 0);
> +    if (ret < 0)
> +        return 0;
>
> -    for (;;) {
> -        buf = avpriv_find_start_code(buf, buf_end, &state);
> -        if (buf >= buf_end)
> -            break;
> -        --buf;
> -        switch (state & 0x1f) {
> +    for (i = 0; i < hpkt.nb_nals; i++) {
> +        H2645NAL *nal = &hpkt.nals[i];
> +        switch (nal->type) {
>          case H264_NAL_SPS:
> -            par->profile = buf[1];
> -            long_gop = buf[2] & 0x10 ? 0 : 1; // constraint_set3_flag
> signals intra
>              e->flags |= 0x40;
> +
> +            if (ps.sps != NULL)
> +                break;
> +
> +            ret = avpriv_h264_decode_seq_parameter_set(&nal->gb,
> (AVCodecContext*)s, &ps, 0);
> +            if (ret < 0)
> +                return ret;
> +            for (j = 0; j < MAX_SPS_COUNT; j++) {
> +                if (ps.sps_list[j] != NULL) {
> +                    ps.sps = (SPS*)ps.sps_list[j]->data;
> +                    break;
> +                }
> +            }
> +
> +            sc->aspect_ratio.num = st->codecpar->width * ps.sps->sar.num;
> +            sc->aspect_ratio.den = st->codecpar->height * ps.sps->sar.den;
> +            av_reduce(&sc->aspect_ratio.num, &sc->aspect_ratio.den,
> +                      sc->aspect_ratio.num, sc->aspect_ratio.den,
> 1024*1024);
> +            intra_only = (ps.sps->constraint_set_flags >> 3) & 1;
> +            sc->interlaced = !ps.sps->frame_mbs_only_flag;
> +            sc->component_depth = ps.sps->bit_depth_luma;
>              break;
>          case H264_NAL_PPS:
>              if (e->flags & 0x40) { // sequence header present
>                  e->flags |= 0x80; // random access
>                  extra_size = 0;
> -                buf = buf_end;
>              }
>              break;
> +        case H264_NAL_IDR_SLICE:
> +            e->flags |= 0x04; // IDR Picture
> +            break;
> +        case H264_NAL_SLICE:
> +            get_ue_golomb_long(&nal->gb); // skip first_mb_in_slice
> +            slice_type = get_ue_golomb_31(&nal->gb);
> +            switch (avpriv_h264_golomb_to_pict_type[slice_type % 5]) {
> +            case AV_PICTURE_TYPE_B:
> +                e->flags |= 0x30; // B Picture
> +                e->flags |= 0x03; // non-referenced B Picture
> +                break;
> +            case AV_PICTURE_TYPE_P:
> +                e->flags |= 0x20; // P Picture
> +                e->flags |= 0x06; // P Picture
> +                break;
> +            default:
> +                break;
> +            }
>          default:
>              break;
>          }
> @@ -2207,27 +2296,33 @@ static int mxf_parse_h264_frame(AVFormatContext
> *s, AVStream *st,
>      if (mxf->header_written)
>          return 1;
>
> -    sc->aspect_ratio = (AVRational){ 16, 9 }; // 16:9 is mandatory for
> broadcast HD
> -    sc->interlaced = par->field_order != AV_FIELD_PROGRESSIVE ? 1 : 0;
> -
> -    uid_found = 0;
> +    if (!ps.sps)
> +        sc->interlaced = st->codecpar->field_order !=
> AV_FIELD_PROGRESSIVE ? 1 : 0;
> +    sc->codec_ul = NULL;
>      frame_size = pkt->size + extra_size;
> -    for (i = 0; i < mxf_h264_num_codec_uls; i++) {
> +    for (i = 0; i < FF_ARRAY_ELEMS(mxf_h264_codec_uls); i++) {
>          if (frame_size == mxf_h264_codec_uls[i].frame_size &&
> sc->interlaced == mxf_h264_codec_uls[i].interlaced) {
>              sc->codec_ul = &mxf_h264_codec_uls[i].uid;
>              sc->component_depth = 10; // AVC Intra is always 10 Bit
> +            sc->aspect_ratio = (AVRational){ 16, 9 }; // 16:9 is
> mandatory for broadcast HD
> +            st->codecpar->profile = mxf_h264_codec_uls[i].profile;
> +            sc->avc_intra = 1;
>              if (sc->interlaced)
>                  sc->field_dominance = 1; // top field first is mandatory
> for AVC Intra
> +            mxf->cbr_index = 1;
>              return 1;
> -        } else if ((mxf_h264_codec_uls[i].profile == par->profile) &&
> -                   ((mxf_h264_codec_uls[i].long_gop < 0) ||
> -                   (mxf_h264_codec_uls[i].long_gop == long_gop))) {
> +        } else if (ps.sps && mxf_h264_codec_uls[i].frame_size == 0 &&
> +                   mxf_h264_codec_uls[i].profile == ps.sps->profile_idc &&
> +                   (mxf_h264_codec_uls[i].intra_only < 0 ||
> +                    mxf_h264_codec_uls[i].intra_only == intra_only)) {
>              sc->codec_ul = &mxf_h264_codec_uls[i].uid;
> -            uid_found = 1;
> +            st->codecpar->profile = ps.sps->profile_idc;
> +            st->codecpar->level = ps.sps->level_idc;
> +            // continue to check for avc intra
>          }
>      }
>
> -    if (!uid_found) {
> +    if (!sc->codec_ul) {
>          av_log(s, AV_LOG_ERROR, "h264 profile not supported\n");
>          return 0;
>      }
> --
> 2.20.1 (Apple Git-117)
>

For RP2027 Class 100 1080/50i I still get the error: frame size does not
match index unit size, 568832 != 0
I used the following command:
ffmpeg -f lavfi -i testsrc=size=1920x1080:rate=50 -vf interlace -c:v
libx264 -pix_fmt yuv422p10 -flags +ildct+ilme -avcintra-class 100
-color_primaries bt709 -color_trc bt709 -colorspace bt709 -x264-params
overscan="crop":videoformat="component":fps=25/1:interlaced=1:tff=1:force-cfr=1
-t 1 avci.mxf

Also I encoded AVC High 422 Intra with the following command:
ffmpeg lavfi -i testsrc=size=1920x1080:rate=50 -c:v libx264 -pix_fmt
yuv422p -x264-params keyint=1 -t 1 avc.mxf
Without your patch MediaInfo shows Format profile: High 4:2:2 Intra at L4.2.
With your patch MediaInfo shows Format profile: High 4:2:2 at L4.2 and
Format_Profile_Original: High 4:2:2 Intra at L4.2.
According to the MediaInfo documentation, the additional
"Format_Profile_Original" is shown when two format profile infomations are
found that do not match.

Regards,
Thomas


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