generic-library/ffmpeg
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Merge commit 'b01a2204b5cff7bb920f42fda1bb0103f450fe93'

Browse Source 
* commit 'b01a2204b5cff7bb920f42fda1bb0103f450fe93':
  libfdk-aacdec: Enable Decoder Downmix including Downmix Metadata Support

Conflicts:
	libavcodec/libfdk-aacdec.c
	libavcodec/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-10-17 20:35:43 +02:00
commit 5a1aa55905
2 changed files with 73 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

80
libavcodec/libfdk-aacdec.c
View File

@ -36,9 +36,16 @@ typedef struct FDKAACDecContext {
const AVClass *class;
HANDLE_AACDECODER handle;
int initialized;
uint8_t *decoder_buffer;
uint8_t *anc_buffer;
enum ConcealMethod conceal_method;
} FDKAACDecContext;
#define DMX_ANC_BUFFSIZE 128
#define DECODER_MAX_CHANNELS 6
#define DECODER_BUFFSIZE 2048 * sizeof(INT_PCM)
#define OFFSET(x) offsetof(FDKAACDecContext, x)
#define AD AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM
static const AVOption fdk_aac_dec_options[] = {
@ -170,6 +177,8 @@ static av_cold int fdk_aac_decode_close(AVCodecContext *avctx)
if (s->handle)
aacDecoder_Close(s->handle);
av_free(s->decoder_buffer);
av_free(s->anc_buffer);
return 0;
}
@ -178,6 +187,7 @@ static av_cold int fdk_aac_decode_init(AVCodecContext *avctx)
{
FDKAACDecContext *s = avctx->priv_data;
AAC_DECODER_ERROR err;
int ret;
s->handle = aacDecoder_Open(avctx->extradata_size ? TT_MP4_RAW : TT_MP4_ADTS, 1);
if (!s->handle) {
@ -199,9 +209,49 @@ static av_cold int fdk_aac_decode_init(AVCodecContext *avctx)
return AVERROR_UNKNOWN;
}
if (avctx->request_channel_layout > 0 &&
avctx->request_channel_layout != AV_CH_LAYOUT_NATIVE) {
int downmix_channels = -1;
switch (avctx->request_channel_layout) {
case AV_CH_LAYOUT_STEREO:
case AV_CH_LAYOUT_STEREO_DOWNMIX:
downmix_channels = 2;
break;
case AV_CH_LAYOUT_MONO:
downmix_channels = 1;
break;
default:
av_log(avctx, AV_LOG_WARNING, "Invalid request_channel_layout\n");
break;
}
if (downmix_channels != -1) {
if (aacDecoder_SetParam(s->handle, AAC_PCM_OUTPUT_CHANNELS,
downmix_channels) != AAC_DEC_OK) {
av_log(avctx, AV_LOG_WARNING, "Unable to set output channels in the decoder\n");
} else {
s->anc_buffer = av_malloc(DMX_ANC_BUFFSIZE);
if (!s->anc_buffer) {
av_log(avctx, AV_LOG_ERROR, "Unable to allocate ancillary buffer for the decoder\n");
ret = AVERROR(ENOMEM);
goto fail;
}
if (aacDecoder_AncDataInit(s->handle, s->anc_buffer, DMX_ANC_BUFFSIZE)) {
av_log(avctx, AV_LOG_ERROR, "Unable to register downmix ancillary buffer in the decoder\n");
ret = AVERROR_UNKNOWN;
goto fail;
}
}
}
}
avctx->sample_fmt = AV_SAMPLE_FMT_S16;
return 0;
fail:
fdk_aac_decode_close(avctx);
return ret;
}
static int fdk_aac_decode_frame(AVCodecContext *avctx, void *data,
@ -225,14 +275,24 @@ static int fdk_aac_decode_frame(AVCodecContext *avctx, void *data,
frame->nb_samples = avctx->frame_size;
if ((ret = ff_get_buffer(avctx, frame, 0)) < 0)
return ret;
buf = frame->extended_data[0];
buf_size = avctx->channels * frame->nb_samples *
av_get_bytes_per_sample(avctx->sample_fmt);
if (s->anc_buffer) {
buf_size = DECODER_BUFFSIZE * DECODER_MAX_CHANNELS;
buf = s->decoder_buffer;
} else {
buf = frame->extended_data[0];
buf_size = avctx->channels * frame->nb_samples *
av_get_bytes_per_sample(avctx->sample_fmt);
}
} else {
buf_size = 50 * 1024;
buf = tmpptr = av_malloc(buf_size);
if (!buf)
buf_size = DECODER_BUFFSIZE * DECODER_MAX_CHANNELS;
if (!s->decoder_buffer)
s->decoder_buffer = av_malloc(buf_size);
if (!s->decoder_buffer)
return AVERROR(ENOMEM);
buf = tmpptr = s->decoder_buffer;
}
err = aacDecoder_DecodeFrame(s->handle, (INT_PCM *) buf, buf_size, 0);
@ -258,16 +318,20 @@ static int fdk_aac_decode_frame(AVCodecContext *avctx, void *data,
frame->nb_samples = avctx->frame_size;
if ((ret = ff_get_buffer(avctx, frame, 0)) < 0)
goto end;
memcpy(frame->extended_data[0], tmpptr,
}
if (s->decoder_buffer) {
memcpy(frame->extended_data[0], buf,
avctx->channels * avctx->frame_size *
av_get_bytes_per_sample(avctx->sample_fmt));
if (!s->anc_buffer)
av_freep(&s->decoder_buffer);
}
*got_frame_ptr = 1;
ret = avpkt->size - valid;
end:
av_free(tmpptr);
return ret;
}

2
libavcodec/version.h
View File

@ -30,7 +30,7 @@
#define LIBAVCODEC_VERSION_MAJOR 56
#define LIBAVCODEC_VERSION_MINOR 8
#define LIBAVCODEC_VERSION_MICRO 100
#define LIBAVCODEC_VERSION_MICRO 101
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
LIBAVCODEC_VERSION_MINOR, \