/*
* Filter layer - default implementations
- * copyright (c) 2007 Bobby Bingham
+ * Copyright (c) 2007 Bobby Bingham
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include "libavcore/imgutils.h"
-#include "libavcodec/audioconvert.h"
+#include "libavutil/audioconvert.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/samplefmt.h"
+
+#include "audio.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)
{
+ if (ptr->extended_data != ptr->data)
+ av_freep(&ptr->extended_data);
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;
+ int linesize[4];
+ uint8_t *data[4];
+ AVFilterBufferRef *picref = NULL;
- /* 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);
+ // +2 is needed for swscaler, +16 to be SIMD-friendly
+ if (av_image_alloc(data, linesize, w, h, link->format, 16) < 0)
+ return NULL;
- memcpy(ref->data, pic->data, sizeof(ref->data));
- memcpy(ref->linesize, pic->linesize, sizeof(ref->linesize));
-
- return ref;
+ 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,
- int64_t channel_layout, int planar)
+AVFilterBufferRef *ff_default_get_audio_buffer(AVFilterLink *link, int perms,
+ int nb_samples)
{
- AVFilterBuffer *samples = av_mallocz(sizeof(AVFilterBuffer));
- AVFilterBufferRef *ref = NULL;
- int i, sample_size, chans_nb, bufsize, per_channel_size, step_size = 0;
- char *buf;
+ AVFilterBufferRef *samplesref = NULL;
+ uint8_t **data;
+ int planar = av_sample_fmt_is_planar(link->format);
+ int nb_channels = av_get_channel_layout_nb_channels(link->channel_layout);
+ int planes = planar ? nb_channels : 1;
+ int linesize;
- if (!samples || !(ref = av_mallocz(sizeof(AVFilterBufferRef))))
+ if (!(data = av_mallocz(sizeof(*data) * planes)))
goto fail;
- ref->buf = samples;
- ref->format = sample_fmt;
-
- ref->audio = av_mallocz(sizeof(AVFilterBufferRefAudioProps));
- if (!ref->audio)
+ if (av_samples_alloc(data, &linesize, nb_channels, nb_samples, link->format, 0) < 0)
goto fail;
- ref->audio->channel_layout = channel_layout;
- ref->audio->size = size;
- ref->audio->planar = planar;
-
- /* make sure the buffer gets read permission or it's useless for output */
- ref->perms = perms | AV_PERM_READ;
-
- samples->refcount = 1;
- samples->free = avfilter_default_free_buffer;
-
- sample_size = av_get_bits_per_sample_format(sample_fmt) >>3;
- chans_nb = avcodec_channel_layout_num_channels(channel_layout);
-
- per_channel_size = size/chans_nb;
- ref->audio->samples_nb = 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.
- * For packed, this is the number of samples * sample_size.
- */
- for (i = 0; i < chans_nb; i++)
- samples->linesize[i] = planar > 0 ? per_channel_size : sample_size;
- memset(&samples->linesize[chans_nb], 0, (8-chans_nb) * sizeof(samples->linesize[0]));
-
- /* Calculate total buffer size, round to multiple of 16 to be SIMD friendly */
- bufsize = (size + 15)&~15;
- buf = av_malloc(bufsize);
- if (!buf)
+ samplesref = avfilter_get_audio_buffer_ref_from_arrays(data, linesize, perms,
+ nb_samples, link->format,
+ link->channel_layout);
+ if (!samplesref)
goto fail;
- /* For planar, set the start point of each channel's data within the buffer
- * For packed, set the start point of the entire buffer only
- */
- samples->data[0] = buf;
- if (buf && planar) {
- for (i = 1; i < chans_nb; i++) {
- step_size += per_channel_size;
- samples->data[i] = buf + step_size;
- }
- } else {
- for (i = 1; i < chans_nb; i++)
- samples->data[i] = buf;
- }
-
- memset(&samples->data[chans_nb], 0, (8-chans_nb) * sizeof(samples->data[0]));
-
- memcpy(ref->data, samples->data, sizeof(ref->data));
- memcpy(ref->linesize, samples->linesize, sizeof(ref->linesize));
-
- return ref;
+ av_freep(&data);
fail:
- av_free(buf);
- if (ref && ref->audio)
- av_free(ref->audio);
- av_free(ref);
- av_free(samples);
- return NULL;
+ if (data)
+ av_freep(&data[0]);
+ av_freep(&data);
+ return samplesref;
}
-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 ff_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,
- samplesref->audio->size,
- samplesref->audio->channel_layout,
- samplesref->audio->planar);
+ 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;
- avfilter_filter_samples(outlink, avfilter_ref_buffer(outlink->out_buf, ~0));
+ 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);
- 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;
avfilter_end_frame(link->dst->outputs[0]);
}
-void avfilter_null_filter_samples(AVFilterLink *link, AVFilterBufferRef *samplesref)
+void ff_null_filter_samples(AVFilterLink *link, AVFilterBufferRef *samplesref)
{
- avfilter_filter_samples(link->dst->outputs[0], samplesref);
+ ff_filter_samples(link->dst->outputs[0], samplesref);
}
AVFilterBufferRef *avfilter_null_get_video_buffer(AVFilterLink *link, int perms, int w, int h)
return avfilter_get_video_buffer(link->dst->outputs[0], perms, w, h);
}
-AVFilterBufferRef *avfilter_null_get_audio_buffer(AVFilterLink *link, int perms,
- enum SampleFormat sample_fmt, int size,
- int64_t channel_layout, int packed)
+AVFilterBufferRef *ff_null_get_audio_buffer(AVFilterLink *link, int perms,
+ int nb_samples)
{
- return avfilter_get_audio_buffer(link->dst->outputs[0], perms, sample_fmt,
- size, channel_layout, packed);
+ return ff_get_audio_buffer(link->dst->outputs[0], perms, nb_samples);
}
-
projects / ffmpeg / blobdiff