Hi Baptiste,
Am Di., 14. Mai 2019 um 18:59 Uhr schrieb Baptiste Coudurier <
baptiste.coudur...@gmail.com>:
> ---
> libavformat/Makefile | 2 +-
> libavformat/avc.c | 186 +++++++++++++++++++++++++++++++++++++
> libavformat/avc.h | 15 +++
> libavformat/hevc.c | 36 +-------
> libavformat/mxf.h | 1 +
> libavformat/mxfenc.c | 213 ++++++++++++++++++++++++++++++++++---------
> 6 files changed, 372 insertions(+), 81 deletions(-)
>
> diff --git a/libavformat/Makefile b/libavformat/Makefile
> index 99be60d184..df87c54a58 100644
> --- a/libavformat/Makefile
> +++ b/libavformat/Makefile
> @@ -339,7 +339,7 @@ OBJS-$(CONFIG_MUSX_DEMUXER) += musx.o
> OBJS-$(CONFIG_MV_DEMUXER) += mvdec.o
> OBJS-$(CONFIG_MVI_DEMUXER) += mvi.o
> OBJS-$(CONFIG_MXF_DEMUXER) += mxfdec.o mxf.o
> -OBJS-$(CONFIG_MXF_MUXER) += mxfenc.o mxf.o
> audiointerleave.o
> +OBJS-$(CONFIG_MXF_MUXER) += mxfenc.o mxf.o
> audiointerleave.o avc.o
> OBJS-$(CONFIG_MXG_DEMUXER) += mxg.o
> OBJS-$(CONFIG_NC_DEMUXER) += ncdec.o
> OBJS-$(CONFIG_NISTSPHERE_DEMUXER) += nistspheredec.o pcm.o
> diff --git a/libavformat/avc.c b/libavformat/avc.c
> index ec50033a04..a041e84357 100644
> --- a/libavformat/avc.c
> +++ b/libavformat/avc.c
> @@ -21,6 +21,7 @@
>
> #include "libavutil/intreadwrite.h"
> #include "libavcodec/h264.h"
> +#include "libavcodec/get_bits.h"
> #include "avformat.h"
> #include "avio.h"
> #include "avc.h"
> @@ -241,3 +242,188 @@ const uint8_t *ff_avc_mp4_find_startcode(const
> uint8_t *start,
>
> return start + res;
> }
> +
> +uint8_t *ff_nal_unit_extract_rbsp(const uint8_t *src, uint32_t src_len,
> + uint32_t *dst_len, int header_len)
> +{
> + uint8_t *dst;
> + uint32_t i, len;
> +
> + dst = av_malloc(src_len + AV_INPUT_BUFFER_PADDING_SIZE);
> + if (!dst)
> + return NULL;
> +
> + /* NAL unit header */
> + i = len = 0;
> + while (i < header_len && i < src_len)
> + dst[len++] = src[i++];
> +
> + while (i + 2 < src_len)
> + if (!src[i] && !src[i + 1] && src[i + 2] == 3) {
> + dst[len++] = src[i++];
> + dst[len++] = src[i++];
> + i++; // remove emulation_prevention_three_byte
> + } else
> + dst[len++] = src[i++];
> +
> + while (i < src_len)
> + dst[len++] = src[i++];
> +
> + memset(dst + len, 0, AV_INPUT_BUFFER_PADDING_SIZE);
> +
> + *dst_len = len;
> + return dst;
> +}
> +
> +static const AVRational avc_sample_aspect_ratio[17] = {
> + { 0, 1 },
> + { 1, 1 },
> + { 12, 11 },
> + { 10, 11 },
> + { 16, 11 },
> + { 40, 33 },
> + { 24, 11 },
> + { 20, 11 },
> + { 32, 11 },
> + { 80, 33 },
> + { 18, 11 },
> + { 15, 11 },
> + { 64, 33 },
> + { 160, 99 },
> + { 4, 3 },
> + { 3, 2 },
> + { 2, 1 },
> +};
> +
> +static inline int get_ue_golomb(GetBitContext *gb) {
> + int i;
> + for (i = 0; i < 32 && !get_bits1(gb); i++)
> + ;
> + return get_bitsz(gb, i) + (1 << i) - 1;
> +}
> +
> +static inline int get_se_golomb(GetBitContext *gb) {
> + int v = get_ue_golomb(gb) + 1;
> + int sign = -(v & 1);
> + return ((v >> 1) ^ sign) - sign;
> +}
> +
> +H264SequenceParameterSet *ff_avc_decode_sps(const uint8_t *buf, int
> buf_size)
> +{
> + int i, j, ret, rbsp_size, aspect_ratio_idc, pic_order_cnt_type;
> + int num_ref_frames_in_pic_order_cnt_cycle;
> + int delta_scale, lastScale = 8, nextScale = 8;
> + int sizeOfScalingList;
> + H264SequenceParameterSet *sps = NULL;
> + GetBitContext gb;
> + uint8_t *rbsp_buf;
> +
> + rbsp_buf = ff_nal_unit_extract_rbsp(buf, buf_size, &rbsp_size, 0);
> + if (!rbsp_buf)
> + return NULL;
> +
> + ret = init_get_bits8(&gb, rbsp_buf, rbsp_size);
> + if (ret < 0)
> + goto end;
> +
> + sps = av_mallocz(sizeof(*sps));
> + if (!sps)
> + goto end;
> +
> + sps->profile_idc = get_bits(&gb, 8);
> + sps->constraint_set_flags |= get_bits1(&gb) << 0; //
> constraint_set0_flag
> + sps->constraint_set_flags |= get_bits1(&gb) << 1; //
> constraint_set1_flag
> + sps->constraint_set_flags |= get_bits1(&gb) << 2; //
> constraint_set2_flag
> + sps->constraint_set_flags |= get_bits1(&gb) << 3; //
> constraint_set3_flag
> + sps->constraint_set_flags |= get_bits1(&gb) << 4; //
> constraint_set4_flag
> + sps->constraint_set_flags |= get_bits1(&gb) << 5; //
> constraint_set5_flag
> + skip_bits(&gb, 2); // reserved_zero_2bits
> + sps->level_idc = get_bits(&gb, 8);
> + sps->id = get_ue_golomb(&gb);
> +
> + if (sps->profile_idc == 100 || sps->profile_idc == 110 ||
> + sps->profile_idc == 122 || sps->profile_idc == 244 ||
> sps->profile_idc == 44 ||
> + sps->profile_idc == 83 || sps->profile_idc == 86 ||
> sps->profile_idc == 118 ||
> + sps->profile_idc == 128 || sps->profile_idc == 138 ||
> sps->profile_idc == 139 ||
> + sps->profile_idc == 134) {
> + sps->chroma_format_idc = get_ue_golomb(&gb); // chroma_format_idc
> + if (sps->chroma_format_idc == 3) {
> + skip_bits1(&gb); // separate_colour_plane_flag
> + }
> + sps->bit_depth_luma = get_ue_golomb(&gb) + 8;
> + get_ue_golomb(&gb); // bit_depth_chroma_minus8
> + skip_bits1(&gb); // qpprime_y_zero_transform_bypass_flag
> + if (get_bits1(&gb)) { // seq_scaling_matrix_present_flag
> + for (i = 0; i < ((sps->chroma_format_idc != 3) ? 8 : 12);
> i++) {
> + if (!get_bits1(&gb)) // seq_scaling_list_present_flag
> + continue;
> + lastScale = 8;
> + nextScale = 8;
> + sizeOfScalingList = i < 6 ? 16 : 64;
> + for (j = 0; j < sizeOfScalingList; j++) {
> + if (nextScale != 0) {
> + delta_scale = get_se_golomb(&gb);
> + nextScale = (lastScale + delta_scale) & 0xff;
> + }
> + lastScale = nextScale == 0 ? lastScale : nextScale;
> + }
> + }
> + }
> + } else {
> + sps->chroma_format_idc = 1;
> + sps->bit_depth_luma = 8;
> + }
> +
> + get_ue_golomb(&gb); // log2_max_frame_num_minus4
> + pic_order_cnt_type = get_ue_golomb(&gb);
> +
> + if (pic_order_cnt_type == 0) {
> + get_ue_golomb(&gb); // log2_max_pic_order_cnt_lsb_minus4
> + } else if (pic_order_cnt_type == 1) {
> + skip_bits1(&gb); // delta_pic_order_always_zero
> + get_se_golomb(&gb); // offset_for_non_ref_pic
> + get_se_golomb(&gb); // offset_for_top_to_bottom_field
> + num_ref_frames_in_pic_order_cnt_cycle = get_ue_golomb(&gb);
> + for (i = 0; i < num_ref_frames_in_pic_order_cnt_cycle; i++)
> + get_se_golomb(&gb); // offset_for_ref_frame
> + }
> +
> + get_ue_golomb(&gb); // max_num_ref_frames
> + skip_bits1(&gb); // gaps_in_frame_num_value_allowed_flag
> + get_ue_golomb(&gb); // pic_width_in_mbs_minus1
> + get_ue_golomb(&gb); // pic_height_in_map_units_minus1
> +
> + sps->frame_mbs_only_flag = get_bits1(&gb);
> + if (!sps->frame_mbs_only_flag)
> + skip_bits1(&gb); // mb_adaptive_frame_field_flag
> +
> + skip_bits1(&gb); // direct_8x8_inference_flag
> +
> + if (get_bits1(&gb)) { // frame_cropping_flag
> + get_ue_golomb(&gb); // frame_crop_left_offset
> + get_ue_golomb(&gb); // frame_crop_right_offset
> + get_ue_golomb(&gb); // frame_crop_top_offset
> + get_ue_golomb(&gb); // frame_crop_bottom_offset
> + }
> +
> + if (get_bits1(&gb)) { // vui_parameters_present_flag
> + if (get_bits1(&gb)) { // aspect_ratio_info_present_flag
> + aspect_ratio_idc = get_bits(&gb, 8);
> + if (aspect_ratio_idc == 0xff) {
> + sps->sar.num = get_bits(&gb, 16);
> + sps->sar.den = get_bits(&gb, 16);
> + } else if (aspect_ratio_idc <
> FF_ARRAY_ELEMS(avc_sample_aspect_ratio)) {
> + sps->sar = avc_sample_aspect_ratio[aspect_ratio_idc];
> + }
> + }
> + }
> +
> + if (!sps->sar.den) {
> + sps->sar.num = 1;
> + sps->sar.den = 1;
> + }
> +
> + end:
> + av_free(rbsp_buf);
> + return sps;
> +}
> diff --git a/libavformat/avc.h b/libavformat/avc.h
> index c5e80ff650..a79bf9b2db 100644
> --- a/libavformat/avc.h
> +++ b/libavformat/avc.h
> @@ -33,5 +33,20 @@ int ff_avc_write_annexb_extradata(const uint8_t *in,
> uint8_t **buf, int *size);
> const uint8_t *ff_avc_mp4_find_startcode(const uint8_t *start,
> const uint8_t *end,
> int nal_length_size);
> +uint8_t *ff_nal_unit_extract_rbsp(const uint8_t *src, uint32_t src_len,
> + uint32_t *dst_len, int header_len);
> +
> +typedef struct {
> + uint8_t id;
> + uint8_t profile_idc;
> + uint8_t level_idc;
> + uint8_t constraint_set_flags;
> + uint8_t chroma_format_idc;
> + uint8_t bit_depth_luma;
> + uint8_t frame_mbs_only_flag;
> + AVRational sar;
> +} H264SequenceParameterSet;
> +
> +H264SequenceParameterSet *ff_avc_decode_sps(const uint8_t *src, int
> src_len);
>
> #endif /* AVFORMAT_AVC_H */
> diff --git a/libavformat/hevc.c b/libavformat/hevc.c
> index 3628d5a028..c7c4be3441 100644
> --- a/libavformat/hevc.c
> +++ b/libavformat/hevc.c
> @@ -643,40 +643,6 @@ static int hvcc_parse_pps(GetBitContext *gb,
> return 0;
> }
>
> -static uint8_t *nal_unit_extract_rbsp(const uint8_t *src, uint32_t
> src_len,
> - uint32_t *dst_len)
> -{
> - uint8_t *dst;
> - uint32_t i, len;
> -
> - dst = av_malloc(src_len + AV_INPUT_BUFFER_PADDING_SIZE);
> - if (!dst)
> - return NULL;
> -
> - /* NAL unit header (2 bytes) */
> - i = len = 0;
> - while (i < 2 && i < src_len)
> - dst[len++] = src[i++];
> -
> - while (i + 2 < src_len)
> - if (!src[i] && !src[i + 1] && src[i + 2] == 3) {
> - dst[len++] = src[i++];
> - dst[len++] = src[i++];
> - i++; // remove emulation_prevention_three_byte
> - } else
> - dst[len++] = src[i++];
> -
> - while (i < src_len)
> - dst[len++] = src[i++];
> -
> - memset(dst + len, 0, AV_INPUT_BUFFER_PADDING_SIZE);
> -
> - *dst_len = len;
> - return dst;
> -}
> -
> -
> -
> static void nal_unit_parse_header(GetBitContext *gb, uint8_t *nal_type)
> {
> skip_bits1(gb); // forbidden_zero_bit
> @@ -753,7 +719,7 @@ static int hvcc_add_nal_unit(uint8_t *nal_buf,
> uint32_t nal_size,
> uint8_t *rbsp_buf;
> uint32_t rbsp_size;
>
> - rbsp_buf = nal_unit_extract_rbsp(nal_buf, nal_size, &rbsp_size);
> + rbsp_buf = ff_nal_unit_extract_rbsp(nal_buf, nal_size, &rbsp_size, 2);
> if (!rbsp_buf) {
> ret = AVERROR(ENOMEM);
> goto end;
> 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..b677f6af8e 100644
> --- a/libavformat/mxfenc.c
> +++ b/libavformat/mxfenc.c
> @@ -49,12 +49,14 @@
> #include "libavcodec/bytestream.h"
> #include "libavcodec/dnxhddata.h"
> #include "libavcodec/dv_profile.h"
> -#include "libavcodec/h264.h"
> +#include "libavcodec/h264_ps.h"
> +#include "libavcodec/golomb.h"
> #include "libavcodec/internal.h"
> #include "audiointerleave.h"
> #include "avformat.h"
> #include "avio_internal.h"
> #include "internal.h"
> +#include "avc.h"
> #include "mxf.h"
> #include "config.h"
>
> @@ -99,6 +101,7 @@ 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 +170,7 @@ 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 +314,7 @@ 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
> },
> @@ -503,6 +507,13 @@ static const MXFLocalTagPair mxf_local_tag_batch[] = {
> { 0x3D0A,
> {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x02,0x01,0x00,0x00,0x00}},
> /* Block Align */
> };
>
> +static const MXFLocalTagPair mxf_avc_subdescriptor_local_tags[] = {
> + { 0x8100,
> {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x09,0x06,0x01,0x01,0x04,0x06,0x10,0x00,0x00}},
> /* SubDescriptors */
> + { 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 */
> +};
> +
> static const MXFLocalTagPair mxf_user_comments_local_tag[] = {
> { 0x4406,
> {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x02,0x01,0x02,0x0C,0x00,0x00,0x00}},
> /* User Comments */
> { 0x5001,
> {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x02,0x01,0x02,0x09,0x01,0x00,0x00}},
> /* Name */
> @@ -584,15 +595,33 @@ static int mxf_get_essence_container_ul_index(enum
> AVCodecID id)
> return -1;
> }
>
> +static void mxf_write_local_tags(AVIOContext *pb, const MXFLocalTagPair
> *local_tags, int count)
> +{
> + int i;
> + for (i = 0; i < count; i++) {
> + avio_wb16(pb, local_tags[i].local_tag);
> + avio_write(pb, local_tags[i].uid, 16);
> + }
> +}
> +
> static void mxf_write_primer_pack(AVFormatContext *s)
> {
> MXFContext *mxf = s->priv_data;
> AVIOContext *pb = s->pb;
> int local_tag_number, i = 0;
> + int avc_tags_count = 0;
>
> local_tag_number = FF_ARRAY_ELEMS(mxf_local_tag_batch);
> local_tag_number += mxf->store_user_comments *
> FF_ARRAY_ELEMS(mxf_user_comments_local_tag);
>
> + for (i = 0; i < s->nb_streams; i++) {
> + MXFStreamContext *sc = s->streams[i]->priv_data;
> + if (s->streams[i]->codecpar->codec_id == AV_CODEC_ID_H264 &&
> !sc->avc_intra) {
> + avc_tags_count =
> FF_ARRAY_ELEMS(mxf_avc_subdescriptor_local_tags);
> + local_tag_number += avc_tags_count;
> + }
> + }
> +
> avio_write(pb, primer_pack_key, 16);
> klv_encode_ber_length(pb, local_tag_number * 18 + 8);
>
> @@ -608,6 +637,8 @@ static void mxf_write_primer_pack(AVFormatContext *s)
> avio_wb16(pb, mxf_user_comments_local_tag[i].local_tag);
> avio_write(pb, mxf_user_comments_local_tag[i].uid, 16);
> }
> + if (avc_tags_count > 0)
> + mxf_write_local_tags(pb, mxf_avc_subdescriptor_local_tags,
> avc_tags_count);
> }
>
> static void mxf_write_local_tag(AVIOContext *pb, int size, int tag)
> @@ -1126,6 +1157,8 @@ 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 +1350,13 @@ 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 +1369,50 @@ 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 +2216,30 @@ 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 +2248,70 @@ 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]);
> + H264SequenceParameterSet *sps = NULL;
> + GetBitContext gb;
> const uint8_t *buf = pkt->data;
> const uint8_t *buf_end = pkt->data + pkt->size;
> + const uint8_t *nal_end;
> uint32_t state = -1;
> - int long_gop = 0; // assume intra when there is no SPS header
> 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
> + int i, frame_size, slice_type, intra_only = 0;
>
> for (;;) {
> buf = avpriv_find_start_code(buf, buf_end, &state);
> if (buf >= buf_end)
> break;
> - --buf;
> +
> switch (state & 0x1f) {
> case H264_NAL_SPS:
> - par->profile = buf[1];
> - long_gop = buf[2] & 0x10 ? 0 : 1; // constraint_set3_flag
> signals intra
> e->flags |= 0x40;
> +
> + if (mxf->header_written)
> + break;
> +
> + nal_end = ff_avc_find_startcode(buf, buf_end);
> + sps = ff_avc_decode_sps(buf, nal_end - buf);
> + if (!sps) {
> + av_log(s, AV_LOG_ERROR, "error parsing sps\n");
> + return 0;
> + }
> +
> + sc->aspect_ratio.num = st->codecpar->width * sps->sar.num;
> + sc->aspect_ratio.den = st->codecpar->height * 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 = (sps->constraint_set_flags >> 3) & 1;
> + sc->interlaced = !sps->frame_mbs_only_flag;
> + sc->component_depth = sps->bit_depth_luma;
> +
> + buf = nal_end;
> 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
> + buf = buf_end;
> + break;
> + case H264_NAL_SLICE:
> + init_get_bits8(&gb, buf, buf_end - buf);
> + get_ue_golomb_long(&gb); // skip first_mb_in_slice
> + slice_type = get_ue_golomb_31(&gb);
> + switch (slice_type % 5) {
> + case 0:
> + e->flags |= 0x20; // P Picture
> + e->flags |= 0x06; // P Picture
> + break;
> + case 1:
> + e->flags |= 0x30; // B Picture
> + e->flags |= 0x03; // non-referenced B Picture
> + break;
> + }
> + buf = buf_end;
> + break;
> default:
> break;
> }
> @@ -2207,27 +2320,37 @@ 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 (!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;
> + mxf->cbr_index = 1;
> + sc->frame_size = pkt->size;
> if (sc->interlaced)
> sc->field_dominance = 1; // top field first is mandatory
> for AVC Intra
> - 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))) {
> + break;
> + } else if (sps && mxf_h264_codec_uls[i].frame_size == 0 &&
> + mxf_h264_codec_uls[i].profile == 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 = sps->profile_idc;
> + st->codecpar->level = sps->level_idc;
> + // continue to check for avc intra
> }
> }
>
> - if (!uid_found) {
> + av_free(sps);
> +
> + if (!sc->codec_ul) {
> av_log(s, AV_LOG_ERROR, "h264 profile not supported\n");
> return 0;
> }
> --
> 2.20.1 (Apple Git-117)
Works well now.
Regards,
Thomas
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