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AAC: Set codec parameters in the first frame rather than in .init()

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Originally committed as revision 22298 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Alex Converse 2010-03-07 23:46:40 +00:00
parent 663322c1b8
commit 54f158bda2
1 changed files with 9 additions and 4 deletions
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13
libavcodec/aac.c
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@ -509,17 +509,14 @@ static av_cold int aac_decode_init(AVCodecContext *avccontext)
int i;
ac->avccontext = avccontext;
ac->m4ac.sample_rate = avccontext->sample_rate;
if (avccontext->extradata_size > 0) {
if (decode_audio_specific_config(ac, avccontext->extradata, avccontext->extradata_size))
return -1;
avccontext->sample_rate = ac->m4ac.sample_rate;
} else if (avccontext->channels > 0) {
ac->m4ac.sample_rate = avccontext->sample_rate;
}
avccontext->sample_fmt = SAMPLE_FMT_S16;
avccontext->frame_size = 1024;
AAC_INIT_VLC_STATIC( 0, 304);
AAC_INIT_VLC_STATIC( 1, 270);
@ -1950,6 +1947,7 @@ static int aac_decode_frame(AVCodecContext *avccontext, void *data,
enum RawDataBlockType elem_type;
int err, elem_id, data_size_tmp;
int buf_consumed;
int samples = 1024, multiplier;
init_get_bits(&gb, buf, buf_size * 8);
@ -2036,6 +2034,13 @@ static int aac_decode_frame(AVCodecContext *avccontext, void *data,
spectral_to_sample(ac);
multiplier = 1;
samples <<= multiplier;
if (ac->output_configured < OC_LOCKED) {
avccontext->sample_rate = ac->m4ac.sample_rate << multiplier;
avccontext->frame_size = samples;
}
data_size_tmp = 1024 * avccontext->channels * sizeof(int16_t);
if (*data_size < data_size_tmp) {
av_log(avccontext, AV_LOG_ERROR,