[FFmpeg-devel] [PATCH 2/2] avformat/mxfenc: support XAVC long gop
Baptiste Coudurier
baptiste.coudurier at gmail.com
Wed Apr 10 01:14:03 EEST 2019
---
libavformat/Makefile | 2 +-
libavformat/avc.c | 32 +++++++
libavformat/avc.h | 2 +
libavformat/hevc.c | 36 +-------
libavformat/mxf.h | 1 +
libavformat/mxfenc.c | 201 +++++++++++++++++++++++++++++++++----------
6 files changed, 193 insertions(+), 81 deletions(-)
diff --git a/libavformat/Makefile b/libavformat/Makefile
index c010fc83f9..f8539527bc 100644
--- a/libavformat/Makefile
+++ b/libavformat/Makefile
@@ -338,7 +338,7 @@ 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..6c97ae04ab 100644
--- a/libavformat/avc.c
+++ b/libavformat/avc.c
@@ -241,3 +241,35 @@ 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;
+}
diff --git a/libavformat/avc.h b/libavformat/avc.h
index c5e80ff650..9f9b4c0175 100644
--- a/libavformat/avc.h
+++ b/libavformat/avc.h
@@ -33,5 +33,7 @@ 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);
#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..8f565e39f8 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 },
@@ -498,6 +502,12 @@ 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 +1136,8 @@ 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 +1329,13 @@ 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 +1348,50 @@ 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 +2195,30 @@ 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 +2227,81 @@ 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]);
+ H264ParamSets ps = { { 0 } };
+ GetBitContext gb;
const uint8_t *buf = pkt->data;
const uint8_t *buf_end = pkt->data + pkt->size;
+ const uint8_t *tmp, *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, j, tmp_size, frame_size, ret, 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;
- break;
+
+ if (ps.sps != NULL)
+ break;
+
+ nal_end = ff_avc_find_startcode(buf, buf_end);
+ tmp = ff_nal_unit_extract_rbsp(buf, nal_end - buf, &tmp_size, 0);
+ if (!buf) {
+ av_log(s, AV_LOG_ERROR, "error extracting rbsp\n");
+ return 0;
+ }
+ init_get_bits(&gb, tmp, tmp_size*8);
+ ret = avpriv_h264_decode_seq_parameter_set(&gb, (AVCodecContext*)s, &ps, 0);
+ av_freep(&tmp);
+ if (ret < 0)
+ return 0;
+ 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;
+
+ buf = nal_end;
+ continue;
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_bits(&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 +2310,35 @@ 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;
+ sc->frame_size = frame_size;
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)
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