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avcodec/ac3dec: Check operations that can fail

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Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt 2020-12-03 16:04:13 +01:00
parent 277281ac8e
commit 10663312de
3 changed files with 10 additions and 4 deletions
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11
libavcodec/ac3dec.c
View File

@ -184,22 +184,25 @@ static av_cold void ac3_tables_init(void)
static av_cold int ac3_decode_init(AVCodecContext *avctx)
{
AC3DecodeContext *s = avctx->priv_data;
int i;
int i, ret;
s->avctx = avctx;
ac3_tables_init();
ff_mdct_init(&s->imdct_256, 8, 1, 1.0);
ff_mdct_init(&s->imdct_512, 9, 1, 1.0);
if ((ret = ff_mdct_init(&s->imdct_256, 8, 1, 1.0)) < 0 ||
(ret = ff_mdct_init(&s->imdct_512, 9, 1, 1.0)) < 0)
return ret;
AC3_RENAME(ff_kbd_window_init)(s->window, 5.0, 256);
ff_bswapdsp_init(&s->bdsp);
#if (USE_FIXED)
s->fdsp = avpriv_alloc_fixed_dsp(avctx->flags & AV_CODEC_FLAG_BITEXACT);
#else
s->fdsp = avpriv_float_dsp_alloc(avctx->flags & AV_CODEC_FLAG_BITEXACT);
ff_fmt_convert_init(&s->fmt_conv, avctx);
s->fdsp = avpriv_float_dsp_alloc(avctx->flags & AV_CODEC_FLAG_BITEXACT);
#endif
if (!s->fdsp)
return AVERROR(ENOMEM);
ff_ac3dsp_init(&s->ac3dsp, avctx->flags & AV_CODEC_FLAG_BITEXACT);
av_lfg_init(&s->dith_state, 0);

1
libavcodec/ac3dec_fixed.c
View File

@ -182,4 +182,5 @@ AVCodec ff_ac3_fixed_decoder = {
.sample_fmts = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_S16P,
AV_SAMPLE_FMT_NONE },
.priv_class = &ac3_decoder_class,
.caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
};

2
libavcodec/ac3dec_float.c
View File

@ -67,6 +67,7 @@ AVCodec ff_ac3_decoder = {
.sample_fmts = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_FLTP,
AV_SAMPLE_FMT_NONE },
.priv_class = &ac3_decoder_class,
.caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
};
#if CONFIG_EAC3_DECODER
@ -91,5 +92,6 @@ AVCodec ff_eac3_decoder = {
.sample_fmts = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_FLTP,
AV_SAMPLE_FMT_NONE },
.priv_class = &eac3_decoder_class,
.caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
};
#endif