virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-11-21 10:55:51 +02:00
Code Issues Releases Activity

8svx: decode directly to the user-provided AVFrame

Browse Source
This commit is contained in:
Justin Ruggles 2012-12-23 16:28:03 -05:00
parent fd1abf4269
commit a3de4010c2
1 changed files with 6 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
libavcodec/8svx.c
View File

@ -34,7 +34,6 @@
/** decoder context */
typedef struct EightSvxContext {
AVFrame frame;
uint8_t fib_acc[2];
const int8_t *table;
@ -85,6 +84,7 @@ static int eightsvx_decode_frame(AVCodecContext *avctx, void *data,
int *got_frame_ptr, AVPacket *avpkt)
{
EightSvxContext *esc = avctx->priv_data;
AVFrame *frame = data;
int buf_size;
int ch, ret;
int is_compr = (avctx->codec_id != AV_CODEC_ID_PCM_S8_PLANAR);
@ -136,26 +136,25 @@ static int eightsvx_decode_frame(AVCodecContext *avctx, void *data,
}
/* get output buffer */
esc->frame.nb_samples = buf_size * (is_compr + 1);
if ((ret = ff_get_buffer(avctx, &esc->frame)) < 0) {
frame->nb_samples = buf_size * (is_compr + 1);
if ((ret = ff_get_buffer(avctx, frame)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return ret;
}
for (ch = 0; ch < avctx->channels; ch++) {
if (is_compr) {
delta_decode(esc->frame.data[ch], &esc->data[ch][esc->data_idx],
delta_decode(frame->data[ch], &esc->data[ch][esc->data_idx],
buf_size, &esc->fib_acc[ch], esc->table);
} else {
raw_decode(esc->frame.data[ch], &esc->data[ch][esc->data_idx],
raw_decode(frame->data[ch], &esc->data[ch][esc->data_idx],
buf_size);
}
}
esc->data_idx += buf_size;
*got_frame_ptr = 1;
*(AVFrame *)data = esc->frame;
*got_frame_ptr = 1;
return avpkt->size;
}
@ -184,9 +183,6 @@ static av_cold int eightsvx_decode_init(AVCodecContext *avctx)
}
avctx->sample_fmt = AV_SAMPLE_FMT_U8P;
avcodec_get_frame_defaults(&esc->frame);
avctx->coded_frame = &esc->frame;
return 0;
}