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authorJustin Ruggles <justin.ruggles@gmail.com>2012-12-23 20:02:46 -0500
committerJustin Ruggles <justin.ruggles@gmail.com>2013-02-12 12:22:39 -0500
commit4a2b26fc1b1ad123eba473a20e270f2b0ba92bca (patch)
treeb2f55fdbb93dabd03f63bd94d61cfd14b4f5aaf7 /libavcodec/takdec.c
parent903b62cc0b883094b3e0330c7fe87ca4a5ace91e (diff)
tak: decode directly to the user-provided AVFrame
Diffstat (limited to 'libavcodec/takdec.c')
-rw-r--r--libavcodec/takdec.c19
1 files changed, 8 insertions, 11 deletions
diff --git a/libavcodec/takdec.c b/libavcodec/takdec.c
index 1a2cc3bed7..48a424ebb7 100644
--- a/libavcodec/takdec.c
+++ b/libavcodec/takdec.c
@@ -45,7 +45,6 @@ typedef struct MCDParam {
typedef struct TAKDecContext {
AVCodecContext *avctx; // parent AVCodecContext
- AVFrame frame; // AVFrame for decoded output
DSPContext dsp;
TAKStreamInfo ti;
GetBitContext gb; // bitstream reader initialized to start at the current frame
@@ -176,8 +175,6 @@ static av_cold int tak_decode_init(AVCodecContext *avctx)
ff_dsputil_init(&s->dsp, avctx);
s->avctx = avctx;
- avcodec_get_frame_defaults(&s->frame);
- avctx->coded_frame = &s->frame;
set_sample_rate_params(avctx);
@@ -675,6 +672,7 @@ static int tak_decode_frame(AVCodecContext *avctx, void *data,
int *got_frame_ptr, AVPacket *pkt)
{
TAKDecContext *s = avctx->priv_data;
+ AVFrame *frame = data;
GetBitContext *gb = &s->gb;
int chan, i, ret, hsize;
@@ -741,8 +739,8 @@ static int tak_decode_frame(AVCodecContext *avctx, void *data,
s->nb_samples = s->ti.last_frame_samples ? s->ti.last_frame_samples
: s->ti.frame_samples;
- s->frame.nb_samples = s->nb_samples;
- if ((ret = ff_get_buffer(avctx, &s->frame)) < 0)
+ frame->nb_samples = s->nb_samples;
+ if ((ret = ff_get_buffer(avctx, frame)) < 0)
return ret;
if (avctx->bits_per_coded_sample <= 16) {
@@ -759,7 +757,7 @@ static int tak_decode_frame(AVCodecContext *avctx, void *data,
return ret;
} else {
for (chan = 0; chan < avctx->channels; chan++)
- s->decoded[chan] = (int32_t *)s->frame.extended_data[chan];
+ s->decoded[chan] = (int32_t *)frame->extended_data[chan];
}
if (s->nb_samples < 16) {
@@ -877,7 +875,7 @@ static int tak_decode_frame(AVCodecContext *avctx, void *data,
switch (avctx->sample_fmt) {
case AV_SAMPLE_FMT_U8P:
for (chan = 0; chan < avctx->channels; chan++) {
- uint8_t *samples = (uint8_t *)s->frame.extended_data[chan];
+ uint8_t *samples = (uint8_t *)frame->extended_data[chan];
int32_t *decoded = s->decoded[chan];
for (i = 0; i < s->nb_samples; i++)
samples[i] = decoded[i] + 0x80;
@@ -885,7 +883,7 @@ static int tak_decode_frame(AVCodecContext *avctx, void *data,
break;
case AV_SAMPLE_FMT_S16P:
for (chan = 0; chan < avctx->channels; chan++) {
- int16_t *samples = (int16_t *)s->frame.extended_data[chan];
+ int16_t *samples = (int16_t *)frame->extended_data[chan];
int32_t *decoded = s->decoded[chan];
for (i = 0; i < s->nb_samples; i++)
samples[i] = decoded[i];
@@ -893,15 +891,14 @@ static int tak_decode_frame(AVCodecContext *avctx, void *data,
break;
case AV_SAMPLE_FMT_S32P:
for (chan = 0; chan < avctx->channels; chan++) {
- int32_t *samples = (int32_t *)s->frame.extended_data[chan];
+ int32_t *samples = (int32_t *)frame->extended_data[chan];
for (i = 0; i < s->nb_samples; i++)
samples[i] <<= 8;
}
break;
}
- *got_frame_ptr = 1;
- *(AVFrame *)data = s->frame;
+ *got_frame_ptr = 1;
return pkt->size;
}