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authorJustin Ruggles <justin.ruggles@gmail.com>2011-09-06 12:17:45 -0400
committerJustin Ruggles <justin.ruggles@gmail.com>2011-12-02 17:40:40 -0500
commit0eea212943544d40f99b05571aa7159d78667154 (patch)
tree1e6b0271a633bf8a3f92c78bdfbaca275498ee26 /libavcodec/ra144dec.c
parent560f773c7ddd17f66e2621222980c1359a9027be (diff)
downloadffmpeg-0eea212943544d40f99b05571aa7159d78667154.tar.gz
Add avcodec_decode_audio4().
Deprecate avcodec_decode_audio3(). Implement audio support in avcodec_default_get_buffer(). Implement the new audio decoder API in all audio decoders.
Diffstat (limited to 'libavcodec/ra144dec.c')
-rw-r--r--libavcodec/ra144dec.c31
1 files changed, 20 insertions, 11 deletions
diff --git a/libavcodec/ra144dec.c b/libavcodec/ra144dec.c
index 5fff696d83..dd8838c417 100644
--- a/libavcodec/ra144dec.c
+++ b/libavcodec/ra144dec.c
@@ -38,6 +38,10 @@ static av_cold int ra144_decode_init(AVCodecContext * avctx)
ractx->lpc_coef[1] = ractx->lpc_tables[1];
avctx->sample_fmt = AV_SAMPLE_FMT_S16;
+
+ avcodec_get_frame_defaults(&ractx->frame);
+ avctx->coded_frame = &ractx->frame;
+
return 0;
}
@@ -54,8 +58,8 @@ static void do_output_subblock(RA144Context *ractx, const uint16_t *lpc_coefs,
}
/** Uncompress one block (20 bytes -> 160*2 bytes). */
-static int ra144_decode_frame(AVCodecContext * avctx, void *vdata,
- int *data_size, AVPacket *avpkt)
+static int ra144_decode_frame(AVCodecContext * avctx, void *data,
+ int *got_frame_ptr, AVPacket *avpkt)
{
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
@@ -64,23 +68,25 @@ static int ra144_decode_frame(AVCodecContext * avctx, void *vdata,
uint16_t block_coefs[NBLOCKS][LPC_ORDER]; // LPC coefficients of each sub-block
unsigned int lpc_refl[LPC_ORDER]; // LPC reflection coefficients of the frame
int i, j;
- int out_size;
- int16_t *data = vdata;
+ int ret;
+ int16_t *samples;
unsigned int energy;
RA144Context *ractx = avctx->priv_data;
GetBitContext gb;
- out_size = NBLOCKS * BLOCKSIZE * av_get_bytes_per_sample(avctx->sample_fmt);
- if (*data_size < out_size) {
- av_log(avctx, AV_LOG_ERROR, "Output buffer is too small\n");
- return AVERROR(EINVAL);
+ /* get output buffer */
+ ractx->frame.nb_samples = NBLOCKS * BLOCKSIZE;
+ if ((ret = avctx->get_buffer(avctx, &ractx->frame)) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+ return ret;
}
+ samples = (int16_t *)ractx->frame.data[0];
if(buf_size < FRAMESIZE) {
av_log(avctx, AV_LOG_ERROR,
"Frame too small (%d bytes). Truncated file?\n", buf_size);
- *data_size = 0;
+ *got_frame_ptr = 0;
return buf_size;
}
init_get_bits(&gb, buf, FRAMESIZE * 8);
@@ -106,7 +112,7 @@ static int ra144_decode_frame(AVCodecContext * avctx, void *vdata,
do_output_subblock(ractx, block_coefs[i], refl_rms[i], &gb);
for (j=0; j < BLOCKSIZE; j++)
- *data++ = av_clip_int16(ractx->curr_sblock[j + 10] << 2);
+ *samples++ = av_clip_int16(ractx->curr_sblock[j + 10] << 2);
}
ractx->old_energy = energy;
@@ -114,7 +120,9 @@ static int ra144_decode_frame(AVCodecContext * avctx, void *vdata,
FFSWAP(unsigned int *, ractx->lpc_coef[0], ractx->lpc_coef[1]);
- *data_size = out_size;
+ *got_frame_ptr = 1;
+ *(AVFrame *)data = ractx->frame;
+
return FRAMESIZE;
}
@@ -125,5 +133,6 @@ AVCodec ff_ra_144_decoder = {
.priv_data_size = sizeof(RA144Context),
.init = ra144_decode_init,
.decode = ra144_decode_frame,
+ .capabilities = CODEC_CAP_DR1,
.long_name = NULL_IF_CONFIG_SMALL("RealAudio 1.0 (14.4K)"),
};