* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include "libavutil/audioconvert.h"
+#include "libavutil/channel_layout.h"
+#include "libavutil/common.h"
#include "audio.h"
#include "avfilter.h"
av_freep(&samples);
return NULL;
}
-
-void ff_null_filter_samples(AVFilterLink *link, AVFilterBufferRef *samplesref)
-{
- ff_filter_samples(link->dst->outputs[0], samplesref);
-}
-
-/* FIXME: samplesref is same as link->cur_buf. Need to consider removing the redundant parameter. */
-void ff_default_filter_samples(AVFilterLink *inlink, AVFilterBufferRef *samplesref)
-{
- AVFilterLink *outlink = NULL;
-
- if (inlink->dst->nb_outputs)
- outlink = inlink->dst->outputs[0];
-
- if (outlink) {
- outlink->out_buf = ff_default_get_audio_buffer(inlink, AV_PERM_WRITE,
- samplesref->audio->nb_samples);
- outlink->out_buf->pts = samplesref->pts;
- outlink->out_buf->audio->sample_rate = samplesref->audio->sample_rate;
- ff_filter_samples(outlink, avfilter_ref_buffer(outlink->out_buf, ~0));
- avfilter_unref_buffer(outlink->out_buf);
- outlink->out_buf = NULL;
- }
- avfilter_unref_buffer(samplesref);
- inlink->cur_buf = NULL;
-}
-
-void ff_filter_samples(AVFilterLink *link, AVFilterBufferRef *samplesref)
-{
- void (*filter_samples)(AVFilterLink *, AVFilterBufferRef *);
- AVFilterPad *dst = link->dstpad;
-
- 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, 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 */
- for (i = 0; i < planes; i++)
- memcpy(link->cur_buf->extended_data[i], samplesref->extended_data[i], samplesref->linesize[0]);
-
- avfilter_unref_buffer(samplesref);
- } else
- link->cur_buf = samplesref;
-
- filter_samples(link, link->cur_buf);
-}
-