RepoMirrors
/
ffmpeg
mirror of https://git.ffmpeg.org/ffmpeg.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

lavc/audiotoolboxdec: support ADTS AAC input

This commit is contained in:
Rodger Combs 2016-03-23 21:50:41 -05:00
parent 36770d8769
commit 59a4492371
1 changed files with 34 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
libavcodec/audiotoolboxdec.c
View File

@ -37,6 +37,7 @@ typedef struct ATDecodeContext {
AudioStreamPacketDescription pkt_desc;
AVPacket in_pkt;
AVPacket new_in_pkt;
AVBitStreamFilterContext *bsf;
unsigned pkt_size;
int64_t last_pts;
@ -233,6 +234,8 @@ static int ffat_decode(AVCodecContext *avctx, void *data,
{
ATDecodeContext *at = avctx->priv_data;
AVFrame *frame = data;
int pkt_size = avpkt->size;
AVPacket filtered_packet;
OSStatus ret;
AudioBufferList out_buffers = {
@ -245,11 +248,41 @@ static int ffat_decode(AVCodecContext *avctx, void *data,
}
};
if (avctx->codec_id == AV_CODEC_ID_AAC && avpkt->size > 2 &&
(AV_RB16(avpkt->data) & 0xfff0) == 0xfff0) {
int first = 0;
uint8_t *p_filtered = NULL;
int n_filtered = 0;
if (!at->bsf) {
first = 1;
if(!(at->bsf = av_bitstream_filter_init("aac_adtstoasc")))
return AVERROR(ENOMEM);
}
ret = av_bitstream_filter_filter(at->bsf, avctx, NULL, &p_filtered, &n_filtered,
avpkt->data, avpkt->size, 0);
if (ret >= 0 && p_filtered != avpkt->data) {
filtered_packet = *avpkt;
avpkt = &filtered_packet;
avpkt->data = p_filtered;
avpkt->size = n_filtered;
}
if (first) {
if ((ret = ffat_set_extradata(avctx)) < 0)
return ret;
ffat_update_ctx(avctx);
out_buffers.mBuffers[0].mNumberChannels = avctx->channels;
out_buffers.mBuffers[0].mDataByteSize = av_get_bytes_per_sample(avctx->sample_fmt) * at->pkt_size * avctx->channels;
}
}
av_packet_unref(&at->new_in_pkt);
if (avpkt->size) {
if ((ret = av_packet_ref(&at->new_in_pkt, avpkt)) < 0)
return ret;
at->new_in_pkt.data = avpkt->data;
} else {
at->eof = 1;
}
@ -275,7 +308,7 @@ static int ffat_decode(AVCodecContext *avctx, void *data,
at->last_pts = avpkt->pts;
}
return avpkt->size;
return pkt_size;
}
static av_cold void ffat_decode_flush(AVCodecContext *avctx)