int ff_filter_samples_framed(AVFilterLink *link, AVFilterBufferRef *samplesref)
{
int (*filter_samples)(AVFilterLink *, AVFilterBufferRef *);
AVFilterPad *src = link->srcpad;
AVFilterPad *dst = link->dstpad;
int64_t pts;
AVFilterBufferRef *buf_out;
int ret;
FF_TPRINTF_START(NULL, filter_samples); ff_tlog_link(NULL, link, 1);
if (link->closed) {
avfilter_unref_buffer(samplesref);
return AVERROR_EOF;
}
if (!(filter_samples = dst->filter_samples))
filter_samples = default_filter_samples;
av_assert1((samplesref->perms & src->min_perms) == src->min_perms);
samplesref->perms &= ~ src->rej_perms;
/* prepare to copy the samples if the buffer has insufficient permissions */
if ((dst->min_perms & samplesref->perms) != dst->min_perms ||
dst->rej_perms & samplesref->perms) {
av_log(link->dst, AV_LOG_DEBUG,
"Copying audio data in avfilter (have perms %x, need %x, reject %x)\n",
samplesref->perms, link->dstpad->min_perms, link->dstpad->rej_perms);
buf_out = ff_default_get_audio_buffer(link, dst->min_perms,
samplesref->audio->nb_samples);
if (!buf_out) {
avfilter_unref_buffer(samplesref);
return AVERROR(ENOMEM);
}
buf_out->pts = samplesref->pts;
buf_out->audio->sample_rate = samplesref->audio->sample_rate;
/* Copy actual data into new samples buffer */
av_samples_copy(buf_out->extended_data, samplesref->extended_data,
0, 0, samplesref->audio->nb_samples,
av_get_channel_layout_nb_channels(link->channel_layout),
link->format);
avfilter_unref_buffer(samplesref);
} else
buf_out = samplesref;
link->cur_buf = buf_out;
pts = buf_out->pts;
ret = filter_samples(link, buf_out);
ff_update_link_current_pts(link, pts);
return ret;
}
void ff_filter_samples(AVFilterLink *link, AVFilterBufferRef *samplesref)
{
void (*filter_samples)(AVFilterLink *, AVFilterBufferRef *);
AVFilterPad *dst = link->dstpad;
int64_t pts;
FF_DPRINTF_START(NULL, filter_samples); ff_dlog_link(NULL, link, 1);
if (!(filter_samples = dst->filter_samples))
filter_samples = ff_default_filter_samples;
/* prepare to copy the samples if the buffer has insufficient permissions */
if ((dst->min_perms & samplesref->perms) != dst->min_perms ||
dst->rej_perms & samplesref->perms) {
int i, size, planar = av_sample_fmt_is_planar(samplesref->format);
int planes = !planar ? 1:
av_get_channel_layout_nb_channels(samplesref->audio->channel_layout);
av_log(link->dst, AV_LOG_DEBUG,
"Copying audio data in avfilter (have perms %x, need %x, reject %x)\n",
samplesref->perms, link->dstpad->min_perms, link->dstpad->rej_perms);
link->cur_buf = ff_default_get_audio_buffer(link, dst->min_perms,
samplesref->audio->nb_samples);
link->cur_buf->pts = samplesref->pts;
link->cur_buf->audio->sample_rate = samplesref->audio->sample_rate;
/* Copy actual data into new samples buffer */
/* src can be larger than dst if it was allocated larger than necessary.
dst can be slightly larger due to extra alignment padding. */
size = FFMIN(samplesref->linesize[0], link->cur_buf->linesize[0]);
for (i = 0; samplesref->data[i] && i < 8; i++)
memcpy(link->cur_buf->data[i], samplesref->data[i], size);
for (i = 0; i < planes; i++)
memcpy(link->cur_buf->extended_data[i], samplesref->extended_data[i], size);
avfilter_unref_buffer(samplesref);
} else
link->cur_buf = samplesref;
pts = link->cur_buf->pts;
filter_samples(link, link->cur_buf);
ff_update_link_current_pts(link, pts);
}
