diff options
| -rw-r--r-- | common/av_common.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/common/av_common.c b/common/av_common.c index 2eae8c4e3e..bd82d75be8 100644 --- a/common/av_common.c +++ b/common/av_common.c @@ -80,12 +80,23 @@ AVCodecParameters *mp_codec_params_to_av(struct mp_codec_params *c) avp->codec_id = mp_codec_to_av_codec_id(c->codec); avp->codec_tag = c->codec_tag; if (c->extradata_size) { - avp->extradata = - av_mallocz(c->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE); + uint8_t *extradata = c->extradata; + int size = c->extradata_size; + + if (avp->codec_id == AV_CODEC_ID_FLAC) { + // ffmpeg expects FLAC extradata to be just the STREAMINFO, + // so grab only that (and assume it'll be the first block) + if (size >= 8 && !memcmp(c->extradata, "fLaC", 4)) { + extradata += 8; + size = MPMIN(34, size - 8); // FLAC_STREAMINFO_SIZE + } + } + + avp->extradata = av_mallocz(size + AV_INPUT_BUFFER_PADDING_SIZE); if (!avp->extradata) goto error; - avp->extradata_size = c->extradata_size; - memcpy(avp->extradata, c->extradata, avp->extradata_size); + avp->extradata_size = size; + memcpy(avp->extradata, extradata, size); } avp->bits_per_coded_sample = c->bits_per_coded_sample; |