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-rw-r--r--libavformat/Makefile2
-rw-r--r--libavformat/isom.c81
-rw-r--r--libavformat/isom.h8
-rw-r--r--libavformat/mov.c84
-rw-r--r--libavformat/mpegts.c64
5 files changed, 157 insertions, 82 deletions
diff --git a/libavformat/Makefile b/libavformat/Makefile
index 1f63feee94..f61548123d 100644
--- a/libavformat/Makefile
+++ b/libavformat/Makefile
@@ -138,7 +138,7 @@ OBJS-$(CONFIG_MPEG2SVCD_MUXER) += mpegenc.o
OBJS-$(CONFIG_MPEG1VIDEO_MUXER) += rawenc.o
OBJS-$(CONFIG_MPEG2VIDEO_MUXER) += rawenc.o
OBJS-$(CONFIG_MPEGPS_DEMUXER) += mpeg.o
-OBJS-$(CONFIG_MPEGTS_DEMUXER) += mpegts.o
+OBJS-$(CONFIG_MPEGTS_DEMUXER) += mpegts.o isom.o
OBJS-$(CONFIG_MPEGTS_MUXER) += mpegtsenc.o adtsenc.o
OBJS-$(CONFIG_MPEGVIDEO_DEMUXER) += mpegvideodec.o rawdec.o
OBJS-$(CONFIG_MPJPEG_MUXER) += mpjpeg.o
diff --git a/libavformat/isom.c b/libavformat/isom.c
index 34404ad022..bf0140103a 100644
--- a/libavformat/isom.c
+++ b/libavformat/isom.c
@@ -21,9 +21,14 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+//#define DEBUG
+
#include "avformat.h"
#include "internal.h"
#include "isom.h"
+#include "riff.h"
+#include "libavcodec/mpeg4audio.h"
+#include "libavcodec/mpegaudiodata.h"
/* http://www.mp4ra.org */
/* ordered by muxing preference */
@@ -326,3 +331,79 @@ int ff_mov_lang_to_iso639(unsigned code, char to[4])
memcpy(to, mov_mdhd_language_map[code], 4);
return 1;
}
+
+int ff_mp4_read_descr_len(ByteIOContext *pb)
+{
+ int len = 0;
+ int count = 4;
+ while (count--) {
+ int c = get_byte(pb);
+ len = (len << 7) | (c & 0x7f);
+ if (!(c & 0x80))
+ break;
+ }
+ return len;
+}
+
+int ff_mp4_read_descr(AVFormatContext *fc, ByteIOContext *pb, int *tag)
+{
+ int len;
+ *tag = get_byte(pb);
+ len = ff_mp4_read_descr_len(pb);
+ dprintf(fc, "MPEG4 description: tag=0x%02x len=%d\n", *tag, len);
+ return len;
+}
+
+static const AVCodecTag mp4_audio_types[] = {
+ { CODEC_ID_MP3ON4, AOT_PS }, /* old mp3on4 draft */
+ { CODEC_ID_MP3ON4, AOT_L1 }, /* layer 1 */
+ { CODEC_ID_MP3ON4, AOT_L2 }, /* layer 2 */
+ { CODEC_ID_MP3ON4, AOT_L3 }, /* layer 3 */
+ { CODEC_ID_MP4ALS, AOT_ALS }, /* MPEG-4 ALS */
+ { CODEC_ID_NONE, AOT_NULL },
+};
+
+int ff_mp4_read_dec_config_descr(AVFormatContext *fc, AVStream *st, ByteIOContext *pb)
+{
+ int len, tag;
+ int object_type_id = get_byte(pb);
+ get_byte(pb); /* stream type */
+ get_be24(pb); /* buffer size db */
+ get_be32(pb); /* max bitrate */
+ get_be32(pb); /* avg bitrate */
+
+ st->codec->codec_id= ff_codec_get_id(ff_mp4_obj_type, object_type_id);
+ dprintf(fc, "esds object type id 0x%02x\n", object_type_id);
+ len = ff_mp4_read_descr(fc, pb, &tag);
+ if (tag == MP4DecSpecificDescrTag) {
+ dprintf(fc, "Specific MPEG4 header len=%d\n", len);
+ if((uint64_t)len > (1<<30))
+ return -1;
+ av_free(st->codec->extradata);
+ st->codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);
+ if (!st->codec->extradata)
+ return AVERROR(ENOMEM);
+ get_buffer(pb, st->codec->extradata, len);
+ st->codec->extradata_size = len;
+ if (st->codec->codec_id == CODEC_ID_AAC) {
+ MPEG4AudioConfig cfg;
+ ff_mpeg4audio_get_config(&cfg, st->codec->extradata,
+ st->codec->extradata_size);
+ st->codec->channels = cfg.channels;
+ if (cfg.object_type == 29 && cfg.sampling_index < 3) // old mp3on4
+ st->codec->sample_rate = ff_mpa_freq_tab[cfg.sampling_index];
+ else if (cfg.ext_sample_rate)
+ st->codec->sample_rate = cfg.ext_sample_rate;
+ else
+ st->codec->sample_rate = cfg.sample_rate;
+ dprintf(fc, "mp4a config channels %d obj %d ext obj %d "
+ "sample rate %d ext sample rate %d\n", st->codec->channels,
+ cfg.object_type, cfg.ext_object_type,
+ cfg.sample_rate, cfg.ext_sample_rate);
+ if (!(st->codec->codec_id = ff_codec_get_id(mp4_audio_types,
+ cfg.object_type)))
+ st->codec->codec_id = CODEC_ID_AAC;
+ }
+ }
+ return 0;
+}
diff --git a/libavformat/isom.h b/libavformat/isom.h
index 6c6ad5459f..2990c9ce82 100644
--- a/libavformat/isom.h
+++ b/libavformat/isom.h
@@ -142,6 +142,14 @@ typedef struct MOVContext {
} MOVContext;
int ff_mp4_read_descr_len(ByteIOContext *pb);
+int ff_mp4_read_descr(AVFormatContext *fc, ByteIOContext *pb, int *tag);
+int ff_mp4_read_dec_config_descr(AVFormatContext *fc, AVStream *st, ByteIOContext *pb);
+
+#define MP4IODescrTag 0x02
+#define MP4ESDescrTag 0x03
+#define MP4DecConfigDescrTag 0x04
+#define MP4DecSpecificDescrTag 0x05
+
int ff_mov_read_esds(AVFormatContext *fc, ByteIOContext *pb, MOVAtom atom);
enum CodecID ff_mov_get_lpcm_codec_id(int bps, int flags);
diff --git a/libavformat/mov.c b/libavformat/mov.c
index cdaf6d36ba..1fc86ea332 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -31,8 +31,6 @@
#include "avformat.h"
#include "riff.h"
#include "isom.h"
-#include "libavcodec/mpeg4audio.h"
-#include "libavcodec/mpegaudiodata.h"
#include "libavcodec/get_bits.h"
#if CONFIG_ZLIB
@@ -462,41 +460,6 @@ static int mov_read_hdlr(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
return 0;
}
-int ff_mp4_read_descr_len(ByteIOContext *pb)
-{
- int len = 0;
- int count = 4;
- while (count--) {
- int c = get_byte(pb);
- len = (len << 7) | (c & 0x7f);
- if (!(c & 0x80))
- break;
- }
- return len;
-}
-
-static int mp4_read_descr(AVFormatContext *fc, ByteIOContext *pb, int *tag)
-{
- int len;
- *tag = get_byte(pb);
- len = ff_mp4_read_descr_len(pb);
- dprintf(fc, "MPEG4 description: tag=0x%02x len=%d\n", *tag, len);
- return len;
-}
-
-#define MP4ESDescrTag 0x03
-#define MP4DecConfigDescrTag 0x04
-#define MP4DecSpecificDescrTag 0x05
-
-static const AVCodecTag mp4_audio_types[] = {
- { CODEC_ID_MP3ON4, AOT_PS }, /* old mp3on4 draft */
- { CODEC_ID_MP3ON4, AOT_L1 }, /* layer 1 */
- { CODEC_ID_MP3ON4, AOT_L2 }, /* layer 2 */
- { CODEC_ID_MP3ON4, AOT_L3 }, /* layer 3 */
- { CODEC_ID_MP4ALS, AOT_ALS }, /* MPEG-4 ALS */
- { CODEC_ID_NONE, AOT_NULL },
-};
-
int ff_mov_read_esds(AVFormatContext *fc, ByteIOContext *pb, MOVAtom atom)
{
AVStream *st;
@@ -507,55 +470,16 @@ int ff_mov_read_esds(AVFormatContext *fc, ByteIOContext *pb, MOVAtom atom)
st = fc->streams[fc->nb_streams-1];
get_be32(pb); /* version + flags */
- len = mp4_read_descr(fc, pb, &tag);
+ len = ff_mp4_read_descr(fc, pb, &tag);
if (tag == MP4ESDescrTag) {
get_be16(pb); /* ID */
get_byte(pb); /* priority */
} else
get_be16(pb); /* ID */
- len = mp4_read_descr(fc, pb, &tag);
- if (tag == MP4DecConfigDescrTag) {
- int object_type_id = get_byte(pb);
- get_byte(pb); /* stream type */
- get_be24(pb); /* buffer size db */
- get_be32(pb); /* max bitrate */
- get_be32(pb); /* avg bitrate */
-
- st->codec->codec_id= ff_codec_get_id(ff_mp4_obj_type, object_type_id);
- dprintf(fc, "esds object type id 0x%02x\n", object_type_id);
- len = mp4_read_descr(fc, pb, &tag);
- if (tag == MP4DecSpecificDescrTag) {
- dprintf(fc, "Specific MPEG4 header len=%d\n", len);
- if((uint64_t)len > (1<<30))
- return -1;
- av_free(st->codec->extradata);
- st->codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);
- if (!st->codec->extradata)
- return AVERROR(ENOMEM);
- get_buffer(pb, st->codec->extradata, len);
- st->codec->extradata_size = len;
- if (st->codec->codec_id == CODEC_ID_AAC) {
- MPEG4AudioConfig cfg;
- ff_mpeg4audio_get_config(&cfg, st->codec->extradata,
- st->codec->extradata_size);
- st->codec->channels = cfg.channels;
- if (cfg.object_type == 29 && cfg.sampling_index < 3) // old mp3on4
- st->codec->sample_rate = ff_mpa_freq_tab[cfg.sampling_index];
- else if (cfg.ext_sample_rate)
- st->codec->sample_rate = cfg.ext_sample_rate;
- else
- st->codec->sample_rate = cfg.sample_rate;
- dprintf(fc, "mp4a config channels %d obj %d ext obj %d "
- "sample rate %d ext sample rate %d\n", st->codec->channels,
- cfg.object_type, cfg.ext_object_type,
- cfg.sample_rate, cfg.ext_sample_rate);
- if (!(st->codec->codec_id = ff_codec_get_id(mp4_audio_types,
- cfg.object_type)))
- st->codec->codec_id = CODEC_ID_AAC;
- }
- }
- }
+ len = ff_mp4_read_descr(fc, pb, &tag);
+ if (tag == MP4DecConfigDescrTag)
+ ff_mp4_read_dec_config_descr(fc, st, pb);
return 0;
}
diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c
index 64f76044a6..bceef6f210 100644
--- a/libavformat/mpegts.c
+++ b/libavformat/mpegts.c
@@ -30,6 +30,7 @@
#include "mpegts.h"
#include "internal.h"
#include "seek.h"
+#include "isom.h"
/* 1.0 second at 24Mbit/s */
#define MAX_SCAN_PACKETS 32000
@@ -852,6 +853,42 @@ static PESContext *add_pes_stream(MpegTSContext *ts, int pid, int pcr_pid)
return pes;
}
+static int mp4_read_iods(AVFormatContext *s, uint8_t *buf, unsigned size,
+ uint16_t *es_id, uint8_t **dec_config_descr,
+ int *dec_config_descr_size)
+{
+ ByteIOContext pb;
+ int tag;
+ unsigned len;
+
+ init_put_byte(&pb, buf, size, 0, NULL, NULL, NULL, NULL);
+
+ len = ff_mp4_read_descr(s, &pb, &tag);
+ if (tag == MP4IODescrTag) {
+ get_be16(&pb); // ID
+ get_byte(&pb);
+ get_byte(&pb);
+ get_byte(&pb);
+ get_byte(&pb);
+ get_byte(&pb);
+ len = ff_mp4_read_descr(s, &pb, &tag);
+ if (tag == MP4ESDescrTag) {
+ *es_id = get_be16(&pb); /* ES_ID */
+ dprintf(s, "ES_ID %#x\n", *es_id);
+ get_byte(&pb); /* priority */
+ len = ff_mp4_read_descr(s, &pb, &tag);
+ if (tag == MP4DecConfigDescrTag) {
+ *dec_config_descr = av_malloc(len);
+ if (!*dec_config_descr)
+ return AVERROR(ENOMEM);
+ *dec_config_descr_size = len;
+ get_buffer(&pb, *dec_config_descr, len);
+ }
+ }
+ }
+ return 0;
+}
+
static void pmt_cb(MpegTSFilter *filter, const uint8_t *section, int section_len)
{
MpegTSContext *ts = filter->u.section_filter.opaque;
@@ -863,6 +900,9 @@ static void pmt_cb(MpegTSFilter *filter, const uint8_t *section, int section_len
int desc_list_len, desc_len, desc_tag;
char language[4];
uint32_t prog_reg_desc = 0; /* registration descriptor */
+ uint8_t *mp4_dec_config_descr = NULL;
+ int mp4_dec_config_descr_len = 0;
+ int mp4_es_id = 0;
#ifdef DEBUG
dprintf(ts->stream, "PMT: len %i\n", section_len);
@@ -895,11 +935,20 @@ static void pmt_cb(MpegTSFilter *filter, const uint8_t *section, int section_len
uint8_t tag, len;
tag = get8(&p, p_end);
len = get8(&p, p_end);
+
+ dprintf(ts->stream, "program tag: 0x%02x len=%d\n", tag, len);
+
if(len > program_info_length - 2)
//something else is broken, exit the program_descriptors_loop
break;
program_info_length -= len + 2;
- if(tag == 0x05 && len >= 4) { // registration descriptor
+ if (tag == 0x1d) { // IOD descriptor
+ get8(&p, p_end); // scope
+ get8(&p, p_end); // label
+ len -= 2;
+ mp4_read_iods(ts->stream, p, len, &mp4_es_id,
+ &mp4_dec_config_descr, &mp4_dec_config_descr_len);
+ } else if (tag == 0x05 && len >= 4) { // registration descriptor
prog_reg_desc = bytestream_get_le32(&p);
len -= 4;
}
@@ -968,6 +1017,19 @@ static void pmt_cb(MpegTSFilter *filter, const uint8_t *section, int section_len
mpegts_find_stream_type(st, desc_tag, DESC_types);
switch(desc_tag) {
+ case 0x1F: /* FMC descriptor */
+ get16(&p, desc_end);
+ if (st->codec->codec_id == CODEC_ID_AAC_LATM &&
+ mp4_dec_config_descr_len && mp4_es_id == pid) {
+ ByteIOContext pb;
+ init_put_byte(&pb, mp4_dec_config_descr,
+ mp4_dec_config_descr_len, 0, NULL, NULL, NULL, NULL);
+ ff_mp4_read_dec_config_descr(ts->stream, st, &pb);
+ if (st->codec->codec_id == CODEC_ID_AAC &&
+ st->codec->extradata_size > 0)
+ st->need_parsing = 0;
+ }
+ break;
case 0x56: /* DVB teletext descriptor */
language[0] = get8(&p, desc_end);
language[1] = get8(&p, desc_end);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-14 07:14:20 +0000