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Code Issues Releases Activity

avcodec/pcm: Avoid indirection when calling float dsp function

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Do this by only keeping the only function pointer from the
AVFloatDSPContext that is needed lateron. This also allows to remove the
decoders' close function.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt 2020-09-13 00:13:43 +02:00
parent d3737bde63
commit 771f91532c
1 changed files with 10 additions and 16 deletions
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22
libavcodec/pcm.c
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@ -235,13 +235,15 @@ static int pcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
typedef struct PCMDecode {
short table[256];
AVFloatDSPContext *fdsp;
void (*vector_fmul_scalar)(float *dst, const float *src, float mul,
int len);
float scale;
} PCMDecode;
static av_cold int pcm_decode_init(AVCodecContext *avctx)
{
PCMDecode *s = avctx->priv_data;
AVFloatDSPContext *fdsp;
int i;
if (avctx->channels <= 0) {
@ -268,9 +270,11 @@ static av_cold int pcm_decode_init(AVCodecContext *avctx)
return AVERROR_INVALIDDATA;
s->scale = 1. / (1 << (avctx->bits_per_coded_sample - 1));
s->fdsp = avpriv_float_dsp_alloc(0);
if (!s->fdsp)
fdsp = avpriv_float_dsp_alloc(0);
if (!fdsp)
return AVERROR(ENOMEM);
s->vector_fmul_scalar = fdsp->vector_fmul_scalar;
av_free(fdsp);
break;
default:
break;
@ -284,15 +288,6 @@ static av_cold int pcm_decode_init(AVCodecContext *avctx)
return 0;
}
static av_cold int pcm_decode_close(AVCodecContext *avctx)
{
PCMDecode *s = avctx->priv_data;
av_freep(&s->fdsp);
return 0;
}
/**
* Read PCM samples macro
* @param size Data size of native machine format
@ -529,7 +524,7 @@ static int pcm_decode_frame(AVCodecContext *avctx, void *data,
if (avctx->codec_id == AV_CODEC_ID_PCM_F16LE ||
avctx->codec_id == AV_CODEC_ID_PCM_F24LE) {
s->fdsp->vector_fmul_scalar((float *)frame->extended_data[0],
s->vector_fmul_scalar((float *)frame->extended_data[0],
(const float *)frame->extended_data[0],
s->scale, FFALIGN(frame->nb_samples * avctx->channels, 4));
emms_c();
@ -570,7 +565,6 @@ AVCodec ff_ ## name_ ## _decoder = { \
.id = AV_CODEC_ID_ ## id_, \
.priv_data_size = sizeof(PCMDecode), \
.init = pcm_decode_init, \
.close = pcm_decode_close, \
.decode = pcm_decode_frame, \
.capabilities = AV_CODEC_CAP_DR1, \
.sample_fmts = (const enum AVSampleFormat[]){ sample_fmt_, \