xenia-project/FFmpeg
1
0
Fork 0
mirror of https://github.com/xenia-project/FFmpeg.git synced 2024-11-24 20:19:55 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

riffenc: take an AVStream instead of an AVCodecContext

Browse Source 
It will be useful in the following commits.

Also, rename the AVCodecContext pointer name from 'stream' to 'codec'.
This commit is contained in:
Anton Khirnov 2014-05-30 07:17:28 +02:00
parent f792d3cbb8
commit d754ed4172
4 changed files with 19 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
libavformat/avienc.c
View File

@ -120,7 +120,7 @@ static int avi_write_counters(AVFormatContext *s, int riff_id)
assert(avist->frames_hdr_strm);
stream = s->streams[n]->codec;
avio_seek(pb, avist->frames_hdr_strm, SEEK_SET);
ff_parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
ff_parse_specific_params(s->streams[n], &au_byterate, &au_ssize, &au_scale);
if (au_ssize == 0)
avio_wl32(pb, avist->packet_count);
else
@ -248,7 +248,7 @@ static int avi_write_header(AVFormatContext *s)
avio_wl16(pb, 0); /* language */
avio_wl32(pb, 0); /* initial frame */
ff_parse_specific_params(enc, &au_byterate, &au_ssize, &au_scale);
ff_parse_specific_params(st, &au_byterate, &au_ssize, &au_scale);
avio_wl32(pb, au_scale); /* scale */
avio_wl32(pb, au_byterate); /* rate */

2
libavformat/nutenc.c
View File

@ -674,7 +674,7 @@ static int nut_write_header(AVFormatContext *s)
AVStream *st = s->streams[i];
int ssize;
AVRational time_base;
ff_parse_specific_params(st->codec, &time_base.den, &ssize,
ff_parse_specific_params(st, &time_base.den, &ssize,
&time_base.num);
avpriv_set_pts_info(st, 64, time_base.num, time_base.den);

2
libavformat/riff.h
View File

@ -53,7 +53,7 @@ int ff_get_wav_header(AVIOContext *pb, AVCodecContext *codec, int size);
extern const AVCodecTag ff_codec_bmp_tags[];
extern const AVCodecTag ff_codec_wav_tags[];
void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale);
void ff_parse_specific_params(AVStream *st, int *au_rate, int *au_ssize, int *au_scale);
int ff_read_riff_info(AVFormatContext *s, int64_t size);

29
libavformat/riffenc.c
View File

@ -209,32 +209,33 @@ void ff_put_bmp_header(AVIOContext *pb, AVCodecContext *enc,
avio_w8(pb, 0);
}
void ff_parse_specific_params(AVCodecContext *stream, int *au_rate,
void ff_parse_specific_params(AVStream *st, int *au_rate,
int *au_ssize, int *au_scale)
{
AVCodecContext *codec = st->codec;
int gcd;
int audio_frame_size;
/* We use the known constant frame size for the codec if known, otherwise
* fall back on using AVCodecContext.frame_size, which is not as reliable
* for indicating packet duration. */
audio_frame_size = av_get_audio_frame_duration(stream, 0);
audio_frame_size = av_get_audio_frame_duration(codec, 0);
if (!audio_frame_size)
audio_frame_size = stream->frame_size;
audio_frame_size = codec->frame_size;
*au_ssize = stream->block_align;
if (audio_frame_size && stream->sample_rate) {
*au_ssize = codec->block_align;
if (audio_frame_size && codec->sample_rate) {
*au_scale = audio_frame_size;
*au_rate = stream->sample_rate;
} else if (stream->codec_type == AVMEDIA_TYPE_VIDEO ||
stream->codec_type == AVMEDIA_TYPE_DATA ||
stream->codec_type == AVMEDIA_TYPE_SUBTITLE) {
*au_scale = stream->time_base.num;
*au_rate = stream->time_base.den;
*au_rate = codec->sample_rate;
} else if (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
codec->codec_type == AVMEDIA_TYPE_DATA ||
codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
*au_scale = codec->time_base.num;
*au_rate = codec->time_base.den;
} else {
*au_scale = stream->block_align ? stream->block_align * 8 : 8;
*au_rate = stream->bit_rate ? stream->bit_rate :
8 * stream->sample_rate;
*au_scale = codec->block_align ? codec->block_align * 8 : 8;
*au_rate = codec->bit_rate ? codec->bit_rate :
8 * codec->sample_rate;
}
gcd = av_gcd(*au_scale, *au_rate);
*au_scale /= gcd;