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author | Philip Gladstone <philipjsg@users.sourceforge.net> | 2002-05-09 01:18:08 +0000 |
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committer | Philip Gladstone <philipjsg@users.sourceforge.net> | 2002-05-09 01:18:08 +0000 |
commit | 20f01548313c445bffb106672a46a074d8660992 (patch) | |
tree | c200bd718ab3bd5708401395c6a188e4d13f17a3 /libav/ffm.c | |
parent | 7ac13f0c7ebe66dd11db8d67b9a38881fb86d112 (diff) | |
download | ffmpeg-20f01548313c445bffb106672a46a074d8660992.tar.gz |
* Add the gop_size to the video parameters. Also the audio framesize.
* Copy the duration over as well, though I'm not 100% certain that that is
still needed.
Originally committed as revision 462 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libav/ffm.c')
-rw-r--r-- | libav/ffm.c | 51 |
1 files changed, 35 insertions, 16 deletions
diff --git a/libav/ffm.c b/libav/ffm.c index b9b6b26fd0..04010f99b9 100644 --- a/libav/ffm.c +++ b/libav/ffm.c @@ -24,7 +24,7 @@ #define PACKET_ID 0x666d /* each packet contains frames (which can span several packets */ -#define FRAME_HEADER_SIZE 5 +#define FRAME_HEADER_SIZE 8 #define FLAG_KEY_FRAME 0x01 typedef struct FFMStream { @@ -159,16 +159,20 @@ static int ffm_write_header(AVFormatContext *s) put_be32(pb, (codec->frame_rate * 1000) / FRAME_RATE_BASE); put_be16(pb, codec->width); put_be16(pb, codec->height); - put_byte(pb, codec->qmin); - put_byte(pb, codec->qmax); - put_byte(pb, codec->max_qdiff); - put_be16(pb, (int) (codec->qcompress * 10000.0)); - put_be16(pb, (int) (codec->qblur * 10000.0)); + put_be16(pb, codec->gop_size); + put_byte(pb, codec->qmin); + put_byte(pb, codec->qmax); + put_byte(pb, codec->max_qdiff); + put_be16(pb, (int) (codec->qcompress * 10000.0)); + put_be16(pb, (int) (codec->qblur * 10000.0)); break; case CODEC_TYPE_AUDIO: put_be32(pb, codec->sample_rate); put_le16(pb, codec->channels); + put_le16(pb, codec->frame_size); break; + default: + abort(); } /* hack to have real time */ fst->pts = gettime(); @@ -206,6 +210,13 @@ static int ffm_write_packet(AVFormatContext *s, int stream_index, FFMStream *fst = st->priv_data; INT64 pts; UINT8 header[FRAME_HEADER_SIZE]; + int duration; + + if (st->codec.codec_type == CODEC_TYPE_AUDIO) { + duration = ((float)st->codec.frame_size / st->codec.sample_rate * 1000000.0); + } else { + duration = (1000000.0 * FRAME_RATE_BASE / (float)st->codec.frame_rate); + } pts = fst->pts; /* packet size & key_frame */ @@ -216,14 +227,13 @@ static int ffm_write_packet(AVFormatContext *s, int stream_index, header[2] = (size >> 16) & 0xff; header[3] = (size >> 8) & 0xff; header[4] = size & 0xff; + header[5] = (duration >> 16) & 0xff; + header[6] = (duration >> 8) & 0xff; + header[7] = duration & 0xff; ffm_write_data(s, header, FRAME_HEADER_SIZE, pts, 1); ffm_write_data(s, buf, size, pts, 0); - if (st->codec.codec_type == CODEC_TYPE_AUDIO) { - fst->pts += (INT64)((float)st->codec.frame_size / st->codec.sample_rate * 1000000.0); - } else { - fst->pts += (INT64)(1000000.0 * FRAME_RATE_BASE / (float)st->codec.frame_rate); - } + fst->pts += duration; return 0; } @@ -372,16 +382,20 @@ static int ffm_read_header(AVFormatContext *s, AVFormatParameters *ap) codec->frame_rate = ((INT64)get_be32(pb) * FRAME_RATE_BASE) / 1000; codec->width = get_be16(pb); codec->height = get_be16(pb); - codec->qmin = get_byte(pb); - codec->qmax = get_byte(pb); - codec->max_qdiff = get_byte(pb); - codec->qcompress = get_be16(pb) / 10000.0; - codec->qblur = get_be16(pb) / 10000.0; + codec->gop_size = get_be16(pb); + codec->qmin = get_byte(pb); + codec->qmax = get_byte(pb); + codec->max_qdiff = get_byte(pb); + codec->qcompress = get_be16(pb) / 10000.0; + codec->qblur = get_be16(pb) / 10000.0; break; case CODEC_TYPE_AUDIO: codec->sample_rate = get_be32(pb); codec->channels = get_le16(pb); + codec->frame_size = get_le16(pb); break; + default: + abort(); } } @@ -418,6 +432,7 @@ static int ffm_read_packet(AVFormatContext *s, AVPacket *pkt) { int size; FFMContext *ffm = s->priv_data; + int duration; switch(ffm->read_state) { case READ_HEADER: @@ -446,6 +461,8 @@ static int ffm_read_packet(AVFormatContext *s, AVPacket *pkt) return -EAGAIN; } + duration = (ffm->header[5] << 16) | (ffm->header[6] << 8) | ffm->header[7]; + av_new_packet(pkt, size); pkt->stream_index = ffm->header[0]; if (ffm->header[1] & FLAG_KEY_FRAME) @@ -457,6 +474,8 @@ static int ffm_read_packet(AVFormatContext *s, AVPacket *pkt) av_free_packet(pkt); return -EAGAIN; } + pkt->pts = ffm->pts; + pkt->duration = duration; break; } return 0; |