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avcodec/alac: don't fail if channels aren't set during init() when extradata is valid

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The decoder is meant to use it as a fallback if the value in extradata is
invalid.

Regression since d199099be.

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2022-07-29 18:05:51 -03:00
parent 6406d5e430
commit 6ca1690643
1 changed files with 5 additions and 3 deletions
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8
libavcodec/alac.c
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@ -574,13 +574,15 @@ static av_cold int alac_decode_init(AVCodecContext * avctx)
avctx->bits_per_raw_sample = alac->sample_size;
avctx->sample_rate = alac->sample_rate;
if (alac->channels < 1 || alac->channels > ALAC_MAX_CHANNELS) {
if (alac->channels < 1) {
av_log(avctx, AV_LOG_WARNING, "Invalid channel count\n");
if (avctx->ch_layout.nb_channels < 1)
return AVERROR(EINVAL);
alac->channels = avctx->ch_layout.nb_channels;
}
if (avctx->ch_layout.nb_channels > ALAC_MAX_CHANNELS || avctx->ch_layout.nb_channels <= 0 ) {
if (alac->channels > ALAC_MAX_CHANNELS) {
avpriv_report_missing_feature(avctx, "Channel count %d",
avctx->ch_layout.nb_channels);
alac->channels);
return AVERROR_PATCHWELCOME;
}
av_channel_layout_uninit(&avctx->ch_layout);