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avcodec/mpegaudiodec_float: Avoid indirection with float dsp function 

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 2020-09-15 08:16:13 +02:00
parent dac9e88a99
commit e9831b1e98
2 changed files with 11 additions and 23 deletions
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4
libavcodec/mpegaudiodec_float.c
View File

@ -46,7 +46,6 @@ AVCodec ff_mp1float_decoder = {
.id = AV_CODEC_ID_MP1,
.priv_data_size = sizeof(MPADecodeContext),
.init = decode_init,
.close = decode_close,
.decode = decode_frame,
.capabilities = AV_CODEC_CAP_DR1,
.flush = flush,
@ -64,7 +63,6 @@ AVCodec ff_mp2float_decoder = {
.priv_data_size = sizeof(MPADecodeContext),
.init = decode_init,
.decode = decode_frame,
.close = decode_close,
.capabilities = AV_CODEC_CAP_DR1,
.flush = flush,
.sample_fmts = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_FLTP,
@ -80,7 +78,6 @@ AVCodec ff_mp3float_decoder = {
.id = AV_CODEC_ID_MP3,
.priv_data_size = sizeof(MPADecodeContext),
.init = decode_init,
.close = decode_close,
.decode = decode_frame,
.capabilities = AV_CODEC_CAP_DR1,
.flush = flush,
@ -97,7 +94,6 @@ AVCodec ff_mp3adufloat_decoder = {
.id = AV_CODEC_ID_MP3ADU,
.priv_data_size = sizeof(MPADecodeContext),
.init = decode_init,
.close = decode_close,
.decode = decode_frame_adu,
.capabilities = AV_CODEC_CAP_DR1,
.flush = flush,

30
libavcodec/mpegaudiodec_template.c
View File

@ -87,7 +87,7 @@ typedef struct MPADecodeContext {
int err_recognition;
AVCodecContext* avctx;
MPADSPContext mpadsp;
AVFloatDSPContext *fdsp;
void (*butterflies_float)(float *av_restrict v1, float *av_restrict v2, int len);
AVFrame *frame;
uint32_t crc;
} MPADecodeContext;
@ -410,16 +410,6 @@ static av_cold void decode_init_static(void)
}
}
#if USE_FLOATS
static av_cold int decode_close(AVCodecContext * avctx)
{
MPADecodeContext *s = avctx->priv_data;
av_freep(&s->fdsp);
return 0;
}
#endif
static av_cold int decode_init(AVCodecContext * avctx)
{
static int initialized_tables = 0;
@ -433,9 +423,14 @@ static av_cold int decode_init(AVCodecContext * avctx)
s->avctx = avctx;
#if USE_FLOATS
s->fdsp = avpriv_float_dsp_alloc(avctx->flags & AV_CODEC_FLAG_BITEXACT);
if (!s->fdsp)
return AVERROR(ENOMEM);
{
AVFloatDSPContext *fdsp;
fdsp = avpriv_float_dsp_alloc(avctx->flags & AV_CODEC_FLAG_BITEXACT);
if (!fdsp)
return AVERROR(ENOMEM);
s->butterflies_float = fdsp->butterflies_float;
av_free(fdsp);
}
#endif
ff_mpadsp_init(&s->mpadsp);
@ -1188,7 +1183,7 @@ found2:
/* NOTE: the 1/sqrt(2) normalization factor is included in the
global gain */
#if USE_FLOATS
s->fdsp->butterflies_float(g0->sb_hybrid, g1->sb_hybrid, 576);
s->butterflies_float(g0->sb_hybrid, g1->sb_hybrid, 576);
#else
tab0 = g0->sb_hybrid;
tab1 = g1->sb_hybrid;
@ -1871,9 +1866,6 @@ static av_cold int decode_close_mp3on4(AVCodecContext * avctx)
MP3On4DecodeContext *s = avctx->priv_data;
int i;
if (s->mp3decctx[0])
av_freep(&s->mp3decctx[0]->fdsp);
for (i = 0; i < s->frames; i++)
av_freep(&s->mp3decctx[i]);
@ -1938,7 +1930,7 @@ static av_cold int decode_init_mp3on4(AVCodecContext * avctx)
s->mp3decctx[i]->adu_mode = 1;
s->mp3decctx[i]->avctx = avctx;
s->mp3decctx[i]->mpadsp = s->mp3decctx[0]->mpadsp;
s->mp3decctx[i]->fdsp = s->mp3decctx[0]->fdsp;
s->mp3decctx[i]->butterflies_float = s->mp3decctx[0]->butterflies_float;
}
return 0;