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avcodec/evrc: make it possible to disable postfilter 

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2015-06-24 06:03:51 +00:00
parent 388a6f581a
commit cdcf637d56
1 changed files with 26 additions and 3 deletions
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29
libavcodec/evrcdec.c
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@ -26,6 +26,7 @@
*/
#include "libavutil/mathematics.h"
#include "libavutil/opt.h"
#include "avcodec.h"
#include "internal.h"
#include "get_bits.h"
@ -66,6 +67,10 @@ typedef struct EVRCAFrame {
} EVRCAFrame;
typedef struct EVRCContext {
AVClass *class;
int postfilter;
GetBitContext gb;
evrc_packet_rate bitrate;
evrc_packet_rate last_valid_bitrate;
@ -876,9 +881,11 @@ static int evrc_decode_frame(AVCodecContext *avctx, void *data,
memmove(e->pitch, e->pitch + subframe_size, ACB_SIZE * sizeof(float));
synthesis_filter(e->pitch + ACB_SIZE, ilpc,
e->synthesis, subframe_size, tmp);
postfilter(e, tmp, ilpc, samples, pitch_lag,
&postfilter_coeffs[e->bitrate], subframe_size);
e->synthesis, subframe_size,
e->postfilter ? tmp : samples);
if (e->postfilter)
postfilter(e, tmp, ilpc, samples, pitch_lag,
&postfilter_coeffs[e->bitrate], subframe_size);
samples += subframe_size;
}
@ -906,6 +913,21 @@ erasure:
return avpkt->size;
}
#define OFFSET(x) offsetof(EVRCContext, x)
#define AD AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM
static const AVOption options[] = {
{ "postfilter", "enable postfilter", OFFSET(postfilter), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, AD },
{ NULL }
};
static const AVClass evrcdec_class = {
.class_name = "evrc",
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
};
AVCodec ff_evrc_decoder = {
.name = "evrc",
.long_name = NULL_IF_CONFIG_SMALL("EVRC (Enhanced Variable Rate Codec)"),
@ -915,4 +937,5 @@ AVCodec ff_evrc_decoder = {
.decode = evrc_decode_frame,
.capabilities = CODEC_CAP_DR1,
.priv_data_size = sizeof(EVRCContext),
.priv_class = &evrcdec_class,
};