diff options
author | Zhentan Feng <spyfeng@gmail.com> | 2008-08-19 16:36:17 +0400 |
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committer | Carl Eugen Hoyos <cehoyos@rainbow.studorg.tuwien.ac.at> | 2008-08-19 16:36:17 +0400 |
commit | 2c8d438893ac37d15921b89014f749907c6cb239 (patch) | |
tree | 976e4809554b906dc1547f251705cdc4caf3d255 /libavformat | |
parent | 6f18fe8ce7d6509fb09c4a498b9e980ee827b310 (diff) |
Ok-ed parts from patch by zhentan feng.
Originally committed as revision 14839 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavformat')
-rw-r--r-- | libavformat/mxfenc.c | 73 |
1 files changed, 71 insertions, 2 deletions
diff --git a/libavformat/mxfenc.c b/libavformat/mxfenc.c index dae5c49444..95a026f084 100644 --- a/libavformat/mxfenc.c +++ b/libavformat/mxfenc.c @@ -38,6 +38,16 @@ typedef struct { UID uid; } MXFLocalTagPair; +typedef struct { + UID track_essence_element_key; +} MXFStreamContext; + +typedef struct MXFContext { + int64_t header_byte_count; + int64_t header_byte_count_offset; + int64_t header_footer_partition_offset; + int essence_container_count; +} MXFContext; static const uint8_t uuid_base[] = { 0xAD,0xAB,0x44,0x24,0x2f,0x25,0x4d,0xc7,0x92,0xff,0x29,0xbd }; static const uint8_t umid_base[] = { 0x06,0x0A,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x0F,0x00,0x13,0x00,0x00,0x00 }; @@ -56,6 +66,11 @@ static void mxf_write_uuid(ByteIOContext *pb, enum CodecID type, int value) put_be16(pb, value); } +static void mxf_write_umid(ByteIOContext *pb, enum CodecID type, int value) +{ + put_buffer(pb, umid_base, 16); + mxf_write_uuid(pb, type, value); +} static int klv_encode_ber_length(ByteIOContext *pb, uint64_t len) { // Determine the best BER size @@ -114,9 +129,14 @@ static void mxf_write_local_tag(ByteIOContext *pb, int value_size, int tag) put_be16(pb, value_size); } +static void mxf_write_metadata_key(ByteIOContext *pb, unsigned int value) +{ + put_buffer(pb, header_metadata_key, 13); + put_be24(pb, value); +} + static void mxf_free(AVFormatContext *s) { - MXFContext *mxf = s->priv_data; AVStream *st; int i; @@ -124,7 +144,6 @@ static void mxf_free(AVFormatContext *s) st = s->streams[i]; av_freep(&st->priv_data); } - av_freep(&mxf->essence_container_uls); } static const MXFDataDefinitionUL *mxf_get_data_definition_ul(enum CodecType type) @@ -152,6 +171,56 @@ static int mux_write_packet(AVFormatContext *s, AVPacket *pkt) return 0; } +static int mxf_write_header_metadata_sets(AVFormatContext *s) +{ + AVStream *st; + MXFStreamContext *sc = NULL; + int i; + if (mxf_write_preface(s) < 0) + return -1; + + if (mxf_write_identification(s) < 0) + return -1; + + if (mxf_write_content_storage(s) < 0) + return -1; + + for (i = 0; i < s->nb_streams; i++) { + st = s->streams[i]; + sc = av_mallocz(sizeof(MXFStreamContext)); + if (!sc) + return AVERROR(ENOMEM); + st->priv_data = sc; + // set pts information + if (st->codec->codec_type == CODEC_TYPE_VIDEO) { + av_set_pts_info(st, 64, 1, st->codec->time_base.den); + } else if (st->codec->codec_type == CODEC_TYPE_AUDIO) { + av_set_pts_info(st, 64, 1, st->codec->sample_rate); + } + } + + if (mxf_build_structural_metadata(s, MaterialPackage) < 0) + return -1; + + if (mxf_build_structural_metadata(s, SourcePackage) < 0) + return -1; + return 0; +} + +static int mxf_update_header_partition(AVFormatContext *s, int64_t footer_partition_offset) +{ + MXFContext *mxf = s->priv_data; + ByteIOContext *pb = s->pb; + + url_fseek(pb, mxf->header_byte_count_offset, SEEK_SET); + put_be64(pb, mxf->header_byte_count); + put_flush_packet(pb); + + url_fseek(pb, mxf->header_footer_partition_offset, SEEK_SET); + put_be64(pb, footer_partition_offset); + put_flush_packet(pb); + return 0; +} AVOutputFormat mxf_muxer = { "mxf", NULL_IF_CONFIG_SMALL("Material eXchange Format"), |