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Merge commit 'ed1b01131e662c9086b27aaaea69684d8575fbea' 

* commit 'ed1b01131e662c9086b27aaaea69684d8575fbea':
  mlp: implement support for AVCodecContext.request_channel_layout.

Conflicts:
	libavcodec/mlpdec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-01-23 16:44:30 +01:00
parent 86b892af19 ed1b01131e
commit 826188d27a
2 changed files with 37 additions and 10 deletions
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29
libavcodec/mlp_parser.c
View File

@ -328,28 +328,45 @@ static int mlp_parse(AVCodecParserContext *s,
if(!avctx->channels || !avctx->channel_layout) {
if (mh.stream_type == 0xbb) {
/* MLP stream */
#if FF_API_REQUEST_CHANNELS
if (avctx->request_channels > 0 && avctx->request_channels <= 2 &&
mh.num_substreams > 1) {
avctx->channels = 2;
avctx->channel_layout = AV_CH_LAYOUT_STEREO;
} else
#endif
if (avctx->request_channel_layout == AV_CH_LAYOUT_STEREO &&
mh.num_substreams > 1) {
avctx->channels = 2;
avctx->channel_layout = AV_CH_LAYOUT_STEREO;
} else {
avctx->channels = mh.channels_mlp;
avctx->channel_layout = mh.channel_layout_mlp;
}
} else { /* mh.stream_type == 0xba */
/* TrueHD stream */
#if FF_API_REQUEST_CHANNELS
if (avctx->request_channels > 0 && avctx->request_channels <= 2 &&
mh.num_substreams > 1) {
avctx->channels = 2;
avctx->channel_layout = AV_CH_LAYOUT_STEREO;
} else if (mh.channels_thd_stream2 &&
(avctx->request_channels <= 0 ||
avctx->request_channels > mh.channels_thd_stream1)) {
avctx->channels = mh.channels_thd_stream2;
avctx->channel_layout = mh.channel_layout_thd_stream2;
} else {
} else if (avctx->request_channels > 0 &&
avctx->request_channels <= mh.channels_thd_stream1) {
avctx->channels = mh.channels_thd_stream1;
avctx->channel_layout = mh.channel_layout_thd_stream1;
} else
#endif
if (avctx->request_channel_layout == AV_CH_LAYOUT_STEREO &&
mh.num_substreams > 1) {
avctx->channels = 2;
avctx->channel_layout = AV_CH_LAYOUT_STEREO;
} else if (avctx->request_channel_layout == mh.channel_layout_thd_stream1 ||
!mh.channels_thd_stream2) {
avctx->channels = mh.channels_thd_stream1;
avctx->channel_layout = mh.channel_layout_thd_stream1;
} else {
avctx->channels = mh.channels_thd_stream2;
avctx->channel_layout = mh.channel_layout_thd_stream2;
}
}
}

18
libavcodec/mlpdec.c
View File

@ -490,14 +490,24 @@ static int read_restart_header(MLPDecodeContext *m, GetBitContext *gbp,
s->max_channel = max_channel;
s->max_matrix_channel = matrix_channel;
if (m->avctx->request_channels > 0
&& s->max_channel + 1 >= m->avctx->request_channels
&& substr < m->max_decoded_substream) {
#if FF_API_REQUEST_CHANNELS
if (m->avctx->request_channels > 0 &&
m->avctx->request_channels <= s->max_channel + 1 &&
m->max_decoded_substream > substr) {
av_log(m->avctx, AV_LOG_DEBUG,
"Extracting %d channel downmix from substream %d. "
"Extracting %d-channel downmix from substream %d. "
"Further substreams will be skipped.\n",
s->max_channel + 1, substr);
m->max_decoded_substream = substr;
} else
#endif
if (m->avctx->request_channel_layout == s->ch_layout &&
m->max_decoded_substream > substr) {
av_log(m->avctx, AV_LOG_DEBUG,
"Extracting %d-channel downmix (0x%"PRIx64") from substream %d. "
"Further substreams will be skipped.\n",
s->max_channel + 1, s->ch_layout, substr);
m->max_decoded_substream = substr;
}
s->noise_shift = get_bits(gbp, 4);