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libvorbis: proper error logging and return.

This commit is contained in:
Nicolas George 2011-12-30 23:10:41 +01:00
parent 42a1f1d7a8
commit 0098e79f8a
1 changed files with 38 additions and 15 deletions
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53
libavcodec/libvorbis.c
View File

@ -61,38 +61,59 @@ static const AVOption options[] = {
};
static const AVClass class = { "libvorbis", av_default_item_name, options, LIBAVUTIL_VERSION_INT };
static const char * error(int oggerr, int *averr)
{
switch (oggerr) {
case OV_EFAULT: *averr = AVERROR(EFAULT); return "internal error";
case OV_EIMPL: *averr = AVERROR(EINVAL); return "not supported";
case OV_EINVAL: *averr = AVERROR(EINVAL); return "invalid request";
default: *averr = AVERROR(EINVAL); return "unknown error";
}
}
static av_cold int oggvorbis_init_encoder(vorbis_info *vi, AVCodecContext *avccontext)
{
OggVorbisContext *context = avccontext->priv_data;
double cfreq;
int r;
if (avccontext->flags & CODEC_FLAG_QSCALE) {
/* variable bitrate */
if (vorbis_encode_setup_vbr(vi, avccontext->channels,
float quality = avccontext->global_quality / (float)FF_QP2LAMBDA;
r = vorbis_encode_setup_vbr(vi, avccontext->channels,
avccontext->sample_rate,
avccontext->global_quality / (float)FF_QP2LAMBDA / 10.0))
return -1;
quality / 10.0);
if (r) {
av_log(avccontext, AV_LOG_ERROR,
"Unable to set quality to %g: %s\n", quality, error(r, &r));
return r;
}
} else {
int minrate = avccontext->rc_min_rate > 0 ? avccontext->rc_min_rate : -1;
int maxrate = avccontext->rc_min_rate > 0 ? avccontext->rc_max_rate : -1;
/* constant bitrate */
if (vorbis_encode_setup_managed(vi, avccontext->channels,
r = vorbis_encode_setup_managed(vi, avccontext->channels,
avccontext->sample_rate, minrate,
avccontext->bit_rate, maxrate))
return -1;
avccontext->bit_rate, maxrate);
if (r) {
av_log(avccontext, AV_LOG_ERROR,
"Unable to set CBR to %d: %s\n", avccontext->bit_rate,
error(r, &r));
return r;
}
/* variable bitrate by estimate, disable slow rate management */
if (minrate == -1 && maxrate == -1)
if (vorbis_encode_ctl(vi, OV_ECTL_RATEMANAGE2_SET, NULL))
return -1;
return AVERROR(EINVAL); /* should not happen */
}
/* cutoff frequency */
if (avccontext->cutoff > 0) {
cfreq = avccontext->cutoff / 1000.0;
if (vorbis_encode_ctl(vi, OV_ECTL_LOWPASS_SET, &cfreq))
return -1;
return AVERROR(EINVAL); /* should not happen */
}
if (context->iblock) {
@ -143,11 +164,13 @@ static av_cold int oggvorbis_encode_init(AVCodecContext *avccontext)
ogg_packet header, header_comm, header_code;
uint8_t *p;
unsigned int offset;
int r;
vorbis_info_init(&context->vi);
if (oggvorbis_init_encoder(&context->vi, avccontext) < 0) {
av_log(avccontext, AV_LOG_ERROR, "oggvorbis_encode_init: init_encoder failed\n");
return -1;
r = oggvorbis_init_encoder(&context->vi, avccontext);
if (r < 0) {
av_log(avccontext, AV_LOG_ERROR, "oggvorbis_encode_init failed\n");
return r;
}
vorbis_analysis_init(&context->vd, &context->vi);
vorbis_block_init(&context->vd, &context->vb);
@ -228,8 +251,8 @@ static int oggvorbis_encode_frame(AVCodecContext *avccontext,
if (op.bytes == 1 && op.e_o_s)
continue;
if (context->buffer_index + sizeof(ogg_packet) + op.bytes > BUFFER_SIZE) {
av_log(avccontext, AV_LOG_ERROR, "libvorbis: buffer overflow.");
return -1;
av_log(avccontext, AV_LOG_ERROR, "libvorbis: buffer overflow.\n");
return AVERROR(EINVAL);
}
memcpy(context->buffer + context->buffer_index, &op, sizeof(ogg_packet));
context->buffer_index += sizeof(ogg_packet);
@ -249,8 +272,8 @@ static int oggvorbis_encode_frame(AVCodecContext *avccontext,
//FIXME we should reorder the user supplied pts and not assume that they are spaced by 1/sample_rate
if (l > buf_size) {
av_log(avccontext, AV_LOG_ERROR, "libvorbis: buffer overflow.");
return -1;
av_log(avccontext, AV_LOG_ERROR, "libvorbis: buffer overflow.\n");
return AVERROR(EINVAL);
}
memcpy(packets, op2->packet, l);