diff options
author | Luca Barbato | 2015-03-18 13:40:12 +0100 |
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committer | Luca Barbato | 2015-03-20 16:10:20 +0100 |
commit | 342fc46c69199b076b7c210f42208ce39a2bde1c (patch) | |
tree | 5ea3a7db00a6f4e8f6e7125d1129bda141eebc06 /cmdutils.c | |
parent | 30e6abd1a8cc4fd5daf2e23ad2e768862c39e975 (diff) |
cmdutils: Add a stream specifier to map usable streams
It drops everything that cannot be used for re-encoding and/or
streamcopy.
Diffstat (limited to 'cmdutils.c')
-rw-r--r-- | cmdutils.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/cmdutils.c b/cmdutils.c index e01ad24906..af8354aa19 100644 --- a/cmdutils.c +++ b/cmdutils.c @@ -1587,6 +1587,28 @@ int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec) av_freep(&key); return ret; + } else if (*spec == 'u') { + AVCodecContext *avctx = st->codec; + int val; + switch (avctx->codec_type) { + case AVMEDIA_TYPE_AUDIO: + val = avctx->sample_rate && avctx->channels; + if (avctx->sample_fmt == AV_SAMPLE_FMT_NONE) + return 0; + break; + case AVMEDIA_TYPE_VIDEO: + val = avctx->width && avctx->height; + if (avctx->pix_fmt == AV_PIX_FMT_NONE) + return 0; + break; + case AVMEDIA_TYPE_UNKNOWN: + val = 0; + break; + default: + val = 1; + break; + } + return avctx->codec_id != AV_CODEC_ID_NONE && val != 0; } else if (!*spec) /* empty specifier, matches everything */ return 1; |