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Code Issues Releases Activity

pcm-bluray: decode directly to the user-provided AVFrame

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This commit is contained in:
Justin Ruggles 2012-12-23 19:41:46 -05:00
parent 0fe4056f95
commit 0905c96390
1 changed files with 6 additions and 23 deletions
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27
libavcodec/pcm-mpeg.c
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@ -121,26 +121,12 @@ static int pcm_bluray_parse_header(AVCodecContext *avctx,
return 0; return 0;
} }
typedef struct PCMBRDecode {
AVFrame frame;
} PCMBRDecode;
static av_cold int pcm_bluray_decode_init(AVCodecContext * avctx)
{
PCMBRDecode *s = avctx->priv_data;
avcodec_get_frame_defaults(&s->frame);
avctx->coded_frame = &s->frame;
return 0;
}
static int pcm_bluray_decode_frame(AVCodecContext *avctx, void *data, static int pcm_bluray_decode_frame(AVCodecContext *avctx, void *data,
int *got_frame_ptr, AVPacket *avpkt) int *got_frame_ptr, AVPacket *avpkt)
{ {
AVFrame *frame = data;
const uint8_t *src = avpkt->data; const uint8_t *src = avpkt->data;
int buf_size = avpkt->size; int buf_size = avpkt->size;
PCMBRDecode *s = avctx->priv_data;
GetByteContext gb; GetByteContext gb;
int num_source_channels, channel, retval; int num_source_channels, channel, retval;
int sample_size, samples; int sample_size, samples;
@ -165,13 +151,13 @@ static int pcm_bluray_decode_frame(AVCodecContext *avctx, void *data,
samples = buf_size / sample_size; samples = buf_size / sample_size;
/* get output buffer */ /* get output buffer */
s->frame.nb_samples = samples; frame->nb_samples = samples;
if ((retval = ff_get_buffer(avctx, &s->frame)) < 0) { if ((retval = ff_get_buffer(avctx, frame)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return retval; return retval;
} }
dst16 = (int16_t *)s->frame.data[0]; dst16 = (int16_t *)frame->data[0];
dst32 = (int32_t *)s->frame.data[0]; dst32 = (int32_t *)frame->data[0];
if (samples) { if (samples) {
switch (avctx->channel_layout) { switch (avctx->channel_layout) {
@ -306,7 +292,6 @@ static int pcm_bluray_decode_frame(AVCodecContext *avctx, void *data,
} }
*got_frame_ptr = 1; *got_frame_ptr = 1;
*(AVFrame *)data = s->frame;
retval = bytestream2_tell(&gb); retval = bytestream2_tell(&gb);
if (avctx->debug & FF_DEBUG_BITSTREAM) if (avctx->debug & FF_DEBUG_BITSTREAM)
@ -319,8 +304,6 @@ AVCodec ff_pcm_bluray_decoder = {
.name = "pcm_bluray", .name = "pcm_bluray",
.type = AVMEDIA_TYPE_AUDIO, .type = AVMEDIA_TYPE_AUDIO,
.id = AV_CODEC_ID_PCM_BLURAY, .id = AV_CODEC_ID_PCM_BLURAY,
.priv_data_size = sizeof(PCMBRDecode),
.init = pcm_bluray_decode_init,
.decode = pcm_bluray_decode_frame, .decode = pcm_bluray_decode_frame,
.capabilities = CODEC_CAP_DR1, .capabilities = CODEC_CAP_DR1,
.sample_fmts = (const enum AVSampleFormat[]){ .sample_fmts = (const enum AVSampleFormat[]){