/*
* Filter layer - default implementations
- * copyright (c) 2007 Bobby Bingham
+ * Copyright (c) 2007 Bobby Bingham
*
* This file is part of FFmpeg.
*
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include "libavcore/audioconvert.h"
#include "libavcore/imgutils.h"
-#include "libavcodec/audioconvert.h"
+#include "libavcore/samplefmt.h"
#include "avfilter.h"
+#include "internal.h"
/* TODO: buffer pool. see comment for avfilter_default_get_video_buffer() */
-static void avfilter_default_free_buffer(AVFilterBuffer *ptr)
+void ff_avfilter_default_free_buffer(AVFilterBuffer *ptr)
{
av_free(ptr->data[0]);
av_free(ptr);
* alloc & free cycle currently implemented. */
AVFilterBufferRef *avfilter_default_get_video_buffer(AVFilterLink *link, int perms, int w, int h)
{
- AVFilterBuffer *pic = av_mallocz(sizeof(AVFilterBuffer));
- AVFilterBufferRef *ref = NULL;
- int i, tempsize;
- char *buf = NULL;
-
- if (!pic || !(ref = av_mallocz(sizeof(AVFilterBufferRef))))
- goto fail;
-
- ref->buf = pic;
- ref->video = av_mallocz(sizeof(AVFilterBufferRefVideoProps));
- ref->video->w = w;
- ref->video->h = h;
-
- /* make sure the buffer gets read permission or it's useless for output */
- ref->perms = perms | AV_PERM_READ;
-
- pic->refcount = 1;
- ref->format = link->format;
- pic->free = avfilter_default_free_buffer;
- av_image_fill_linesizes(pic->linesize, ref->format, ref->video->w);
-
- for (i = 0; i < 4; i++)
- pic->linesize[i] = FFALIGN(pic->linesize[i], 16);
-
- tempsize = av_image_fill_pointers(pic->data, ref->format, ref->video->h, NULL, pic->linesize);
- buf = av_malloc(tempsize + 16); // +2 is needed for swscaler, +16 to be
- // SIMD-friendly
- if (!buf)
- goto fail;
- av_image_fill_pointers(pic->data, ref->format, ref->video->h, buf, pic->linesize);
-
- memcpy(ref->data, pic->data, sizeof(ref->data));
- memcpy(ref->linesize, pic->linesize, sizeof(ref->linesize));
-
- return ref;
+ int linesize[4];
+ uint8_t *data[4];
+ AVFilterBufferRef *picref = NULL;
+
+ // +2 is needed for swscaler, +16 to be SIMD-friendly
+ if (av_image_alloc(data, linesize, w, h, link->format, 16) < 0)
+ return NULL;
+
+ picref = avfilter_get_video_buffer_ref_from_arrays(data, linesize,
+ perms, w, h, link->format);
+ if (!picref) {
+ av_free(data[0]);
+ return NULL;
+ }
-fail:
- av_free(buf);
- if (ref && ref->video)
- av_free(ref->video);
- av_free(ref);
- av_free(pic);
- return NULL;
+ return picref;
}
AVFilterBufferRef *avfilter_default_get_audio_buffer(AVFilterLink *link, int perms,
- enum SampleFormat sample_fmt, int size,
+ enum AVSampleFormat sample_fmt, int size,
int64_t channel_layout, int planar)
{
AVFilterBuffer *samples = av_mallocz(sizeof(AVFilterBuffer));
ref->perms = perms | AV_PERM_READ;
samples->refcount = 1;
- samples->free = avfilter_default_free_buffer;
+ samples->free = ff_avfilter_default_free_buffer;
- sample_size = av_get_bits_per_sample_format(sample_fmt) >>3;
- chans_nb = avcodec_channel_layout_num_channels(channel_layout);
+ sample_size = av_get_bits_per_sample_fmt(sample_fmt) >>3;
+ chans_nb = av_get_channel_layout_nb_channels(channel_layout);
per_channel_size = size/chans_nb;
- ref->audio->samples_nb = per_channel_size/sample_size;
+ ref->audio->nb_samples = per_channel_size/sample_size;
/* Set the number of bytes to traverse to reach next sample of a particular channel:
* For planar, this is simply the sample size.
return ref;
fail:
- av_free(buf);
- if (ref && ref->audio)
+ if (ref)
av_free(ref->audio);
av_free(ref);
av_free(samples);
return NULL;
}
-void avfilter_default_start_frame(AVFilterLink *link, AVFilterBufferRef *picref)
+void avfilter_default_start_frame(AVFilterLink *inlink, AVFilterBufferRef *picref)
{
- AVFilterLink *out = NULL;
+ AVFilterLink *outlink = NULL;
- if (link->dst->output_count)
- out = link->dst->outputs[0];
+ if (inlink->dst->output_count)
+ outlink = inlink->dst->outputs[0];
- if (out) {
- out->out_buf = avfilter_get_video_buffer(out, AV_PERM_WRITE, out->w, out->h);
- avfilter_copy_buffer_ref_props(out->out_buf, picref);
- avfilter_start_frame(out, avfilter_ref_buffer(out->out_buf, ~0));
+ if (outlink) {
+ outlink->out_buf = avfilter_get_video_buffer(outlink, AV_PERM_WRITE, outlink->w, outlink->h);
+ avfilter_copy_buffer_ref_props(outlink->out_buf, picref);
+ avfilter_start_frame(outlink, avfilter_ref_buffer(outlink->out_buf, ~0));
}
}
-void avfilter_default_draw_slice(AVFilterLink *link, int y, int h, int slice_dir)
+void avfilter_default_draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir)
{
- AVFilterLink *out = NULL;
+ AVFilterLink *outlink = NULL;
- if (link->dst->output_count)
- out = link->dst->outputs[0];
+ if (inlink->dst->output_count)
+ outlink = inlink->dst->outputs[0];
- if (out)
- avfilter_draw_slice(out, y, h, slice_dir);
+ if (outlink)
+ avfilter_draw_slice(outlink, y, h, slice_dir);
}
-void avfilter_default_end_frame(AVFilterLink *link)
+void avfilter_default_end_frame(AVFilterLink *inlink)
{
- AVFilterLink *out = NULL;
+ AVFilterLink *outlink = NULL;
- if (link->dst->output_count)
- out = link->dst->outputs[0];
+ if (inlink->dst->output_count)
+ outlink = inlink->dst->outputs[0];
- avfilter_unref_buffer(link->cur_buf);
- link->cur_buf = NULL;
+ avfilter_unref_buffer(inlink->cur_buf);
+ inlink->cur_buf = NULL;
- if (out) {
- if (out->out_buf) {
- avfilter_unref_buffer(out->out_buf);
- out->out_buf = NULL;
+ if (outlink) {
+ if (outlink->out_buf) {
+ avfilter_unref_buffer(outlink->out_buf);
+ outlink->out_buf = NULL;
}
- avfilter_end_frame(out);
+ avfilter_end_frame(outlink);
}
}
/* FIXME: samplesref is same as link->cur_buf. Need to consider removing the redundant parameter. */
-void avfilter_default_filter_samples(AVFilterLink *link, AVFilterBufferRef *samplesref)
+void avfilter_default_filter_samples(AVFilterLink *inlink, AVFilterBufferRef *samplesref)
{
AVFilterLink *outlink = NULL;
- if (link->dst->output_count)
- outlink = link->dst->outputs[0];
+ if (inlink->dst->output_count)
+ outlink = inlink->dst->outputs[0];
if (outlink) {
- outlink->out_buf = avfilter_default_get_audio_buffer(link, AV_PERM_WRITE, samplesref->format,
+ outlink->out_buf = avfilter_default_get_audio_buffer(inlink, AV_PERM_WRITE, samplesref->format,
samplesref->audio->size,
samplesref->audio->channel_layout,
samplesref->audio->planar);
outlink->out_buf = NULL;
}
avfilter_unref_buffer(samplesref);
- link->cur_buf = NULL;
+ inlink->cur_buf = NULL;
}
/**
if (link->type == AVMEDIA_TYPE_VIDEO) {
link->w = link->src->inputs[0]->w;
link->h = link->src->inputs[0]->h;
+ link->time_base = link->src->inputs[0]->time_base;
} else if (link->type == AVMEDIA_TYPE_AUDIO) {
link->channel_layout = link->src->inputs[0]->channel_layout;
link->sample_rate = link->src->inputs[0]->sample_rate;
}
AVFilterBufferRef *avfilter_null_get_audio_buffer(AVFilterLink *link, int perms,
- enum SampleFormat sample_fmt, int size,
+ enum AVSampleFormat sample_fmt, int size,
int64_t channel_layout, int packed)
{
return avfilter_get_audio_buffer(link->dst->outputs[0], perms, sample_fmt,
projects / ffmpeg / blobdiff