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avconv: fix a segfault when default encoder for a format doesn't exist. 

Fail earlier and with a more descriptive error message.
This commit is contained in:
Anton Khirnov 2012-04-18 06:53:11 +02:00
parent b5c3f0b994
commit 2994913d70
1 changed files with 10 additions and 8 deletions
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18
avconv.c
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@ -2684,8 +2684,16 @@ static int transcode_init(void)
abort();
}
} else {
if (!ost->enc)
ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
if (!ost->enc) {
/* should only happen when a default codec is not present. */
snprintf(error, sizeof(error), "Automatic encoder selection "
"failed for output stream #%d:%d. Default encoder for "
"format %s is probably disabled. Please choose an "
"encoder manually.\n", ost->file_index, ost->index,
oc->oformat->name);
ret = AVERROR(EINVAL);
goto dump_format;
}
if (ist)
ist->decoding_needed = 1;
@ -2819,12 +2827,6 @@ static int transcode_init(void)
if (ost->encoding_needed) {
AVCodec *codec = ost->enc;
AVCodecContext *dec = NULL;
if (!codec) {
snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d:%d",
ost->st->codec->codec_id, ost->file_index, ost->index);
ret = AVERROR(EINVAL);
goto dump_format;
}
if ((ist = get_input_stream(ost)))
dec = ist->st->codec;