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libmp3lame: improve error handling in MP3lame_encode_init()

This commit is contained in:
Justin Ruggles 2012-02-16 22:12:03 -05:00
parent 310c372e12
commit 8dad25ebf7
1 changed files with 26 additions and 20 deletions
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46
libavcodec/libmp3lame.c
View File

@ -40,15 +40,27 @@ typedef struct Mp3AudioContext {
int reservoir;
} Mp3AudioContext;
static av_cold int MP3lame_encode_init(AVCodecContext *avctx)
static av_cold int MP3lame_encode_close(AVCodecContext *avctx)
{
Mp3AudioContext *s = avctx->priv_data;
av_freep(&avctx->coded_frame);
lame_close(s->gfp);
return 0;
}
static av_cold int MP3lame_encode_init(AVCodecContext *avctx)
{
Mp3AudioContext *s = avctx->priv_data;
int ret;
if (avctx->channels > 2)
return -1;
return AVERROR(EINVAL);
if ((s->gfp = lame_init()) == NULL)
goto err;
return AVERROR(ENOMEM);
lame_set_in_samplerate(s->gfp, avctx->sample_rate);
lame_set_out_samplerate(s->gfp, avctx->sample_rate);
lame_set_num_channels(s->gfp, avctx->channels);
@ -66,19 +78,23 @@ static av_cold int MP3lame_encode_init(AVCodecContext *avctx)
}
lame_set_bWriteVbrTag(s->gfp,0);
lame_set_disable_reservoir(s->gfp, !s->reservoir);
if (lame_init_params(s->gfp) < 0)
goto err_close;
if (lame_init_params(s->gfp) < 0) {
ret = -1;
goto error;
}
avctx->frame_size = lame_get_framesize(s->gfp);
avctx->coded_frame = avcodec_alloc_frame();
if (!avctx->coded_frame) {
ret = AVERROR(ENOMEM);
goto error;
}
avctx->coded_frame->key_frame = 1;
return 0;
err_close:
lame_close(s->gfp);
err:
return -1;
error:
MP3lame_encode_close(avctx);
return ret;
}
static const int sSampleRates[] = {
@ -198,16 +214,6 @@ static int MP3lame_encode_frame(AVCodecContext *avctx, unsigned char *frame,
return 0;
}
static av_cold int MP3lame_encode_close(AVCodecContext *avctx)
{
Mp3AudioContext *s = avctx->priv_data;
av_freep(&avctx->coded_frame);
lame_close(s->gfp);
return 0;
}
#define OFFSET(x) offsetof(Mp3AudioContext, x)
#define AE AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
static const AVOption options[] = {