/*
* filter layer
- * 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
*/
/* #define DEBUG */
+#include "libavutil/channel_layout.h"
+#include "libavutil/common.h"
+#include "libavutil/imgutils.h"
#include "libavutil/pixdesc.h"
#include "libavutil/rational.h"
-#include "libavcore/imgutils.h"
+#include "libavutil/samplefmt.h"
+
+#include "audio.h"
#include "avfilter.h"
+#include "formats.h"
#include "internal.h"
+#include "video.h"
unsigned avfilter_version(void) {
return LIBAVFILTER_VERSION_INT;
const char *avfilter_configuration(void)
{
- return FFMPEG_CONFIGURATION;
+ return LIBAV_CONFIGURATION;
}
const char *avfilter_license(void)
{
#define LICENSE_PREFIX "libavfilter license: "
- return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
+ return LICENSE_PREFIX LIBAV_LICENSE + sizeof(LICENSE_PREFIX) - 1;
}
-AVFilterBufferRef *avfilter_ref_buffer(AVFilterBufferRef *ref, int pmask)
-{
- AVFilterBufferRef *ret = av_malloc(sizeof(AVFilterBufferRef));
- if (!ret)
- return NULL;
- *ret = *ref;
- if (ref->type == AVMEDIA_TYPE_VIDEO) {
- ret->video = av_malloc(sizeof(AVFilterBufferRefVideoProps));
- if (!ret->video) {
- av_free(ret);
- return NULL;
- }
- *ret->video = *ref->video;
- } else if (ref->type == AVMEDIA_TYPE_AUDIO) {
- ret->audio = av_malloc(sizeof(AVFilterBufferRefAudioProps));
- if (!ret->audio) {
- av_free(ret);
- return NULL;
- }
- *ret->audio = *ref->audio;
- }
- ret->perms &= pmask;
- ret->buf->refcount ++;
- return ret;
-}
-
-void avfilter_unref_buffer(AVFilterBufferRef *ref)
-{
- if (!(--ref->buf->refcount))
- ref->buf->free(ref->buf);
- av_free(ref->video);
- av_free(ref->audio);
- av_free(ref);
-}
-
-void avfilter_insert_pad(unsigned idx, unsigned *count, size_t padidx_off,
- AVFilterPad **pads, AVFilterLink ***links,
- AVFilterPad *newpad)
+void ff_insert_pad(unsigned idx, unsigned *count, size_t padidx_off,
+ AVFilterPad **pads, AVFilterLink ***links,
+ AVFilterPad *newpad)
{
unsigned i;
{
AVFilterLink *link;
- if (src->output_count <= srcpad || dst->input_count <= dstpad ||
- src->outputs[srcpad] || dst->inputs[dstpad])
+ if (src->nb_outputs <= srcpad || dst->nb_inputs <= dstpad ||
+ src->outputs[srcpad] || dst->inputs[dstpad])
return -1;
+ if (src->output_pads[srcpad].type != dst->input_pads[dstpad].type) {
+ av_log(src, AV_LOG_ERROR,
+ "Media type mismatch between the '%s' filter output pad %d and the '%s' filter input pad %d\n",
+ src->name, srcpad, dst->name, dstpad);
+ return AVERROR(EINVAL);
+ }
+
src->outputs[srcpad] =
dst-> inputs[dstpad] = link = av_mallocz(sizeof(AVFilterLink));
link->srcpad = &src->output_pads[srcpad];
link->dstpad = &dst->input_pads[dstpad];
link->type = src->output_pads[srcpad].type;
- assert(PIX_FMT_NONE == -1 && AV_SAMPLE_FMT_NONE == -1);
+ assert(AV_PIX_FMT_NONE == -1 && AV_SAMPLE_FMT_NONE == -1);
link->format = -1;
return 0;
int ret;
unsigned dstpad_idx = link->dstpad - link->dst->input_pads;
- av_log(link->dst, AV_LOG_INFO, "auto-inserting filter '%s' "
+ av_log(link->dst, AV_LOG_VERBOSE, "auto-inserting filter '%s' "
"between the filter '%s' and the filter '%s'\n",
filt->name, link->src->name, link->dst->name);
/* if any information on supported media formats already exists on the
* link, we need to preserve that */
if (link->out_formats)
- avfilter_formats_changeref(&link->out_formats,
+ ff_formats_changeref(&link->out_formats,
&filt->outputs[filt_dstpad_idx]->out_formats);
+ if (link->out_samplerates)
+ ff_formats_changeref(&link->out_samplerates,
+ &filt->outputs[filt_dstpad_idx]->out_samplerates);
+ if (link->out_channel_layouts)
+ ff_channel_layouts_changeref(&link->out_channel_layouts,
+ &filt->outputs[filt_dstpad_idx]->out_channel_layouts);
return 0;
}
unsigned i;
int ret;
- for (i = 0; i < filter->input_count; i ++) {
+ for (i = 0; i < filter->nb_inputs; i ++) {
AVFilterLink *link = filter->inputs[i];
if (!link) continue;
if ((ret = avfilter_config_links(link->src)) < 0)
return ret;
- if (!(config_link = link->srcpad->config_props))
- config_link = avfilter_default_config_output_link;
- if ((ret = config_link(link)) < 0)
+ if (!(config_link = link->srcpad->config_props)) {
+ if (link->src->nb_inputs != 1) {
+ av_log(link->src, AV_LOG_ERROR, "Source filters and filters "
+ "with more than one input "
+ "must set config_props() "
+ "callbacks on all outputs\n");
+ return AVERROR(EINVAL);
+ }
+ } else if ((ret = config_link(link)) < 0) {
+ av_log(link->src, AV_LOG_ERROR,
+ "Failed to configure output pad on %s\n",
+ link->src->name);
return ret;
+ }
if (link->time_base.num == 0 && link->time_base.den == 0)
- link->time_base = link->src && link->src->input_count ?
+ link->time_base = link->src && link->src->nb_inputs ?
link->src->inputs[0]->time_base : AV_TIME_BASE_Q;
+ if (link->type == AVMEDIA_TYPE_VIDEO) {
+ if (!link->sample_aspect_ratio.num && !link->sample_aspect_ratio.den)
+ link->sample_aspect_ratio = link->src->nb_inputs ?
+ link->src->inputs[0]->sample_aspect_ratio : (AVRational){1,1};
+
+ if (link->src->nb_inputs) {
+ if (!link->w)
+ link->w = link->src->inputs[0]->w;
+ if (!link->h)
+ link->h = link->src->inputs[0]->h;
+ } else if (!link->w || !link->h) {
+ av_log(link->src, AV_LOG_ERROR,
+ "Video source filters must set their output link's "
+ "width and height\n");
+ return AVERROR(EINVAL);
+ }
+ }
+
if ((config_link = link->dstpad->config_props))
- if ((ret = config_link(link)) < 0)
+ if ((ret = config_link(link)) < 0) {
+ av_log(link->src, AV_LOG_ERROR,
+ "Failed to configure input pad on %s\n",
+ link->dst->name);
return ret;
+ }
link->init_state = AVLINK_INIT;
}
return 0;
}
-char *ff_get_ref_perms_string(char *buf, size_t buf_size, int perms)
-{
- snprintf(buf, buf_size, "%s%s%s%s%s",
- perms & AV_PERM_READ ? "r" : "",
- perms & AV_PERM_WRITE ? "w" : "",
- perms & AV_PERM_PRESERVE ? "p" : "",
- perms & AV_PERM_REUSE ? "u" : "",
- perms & AV_PERM_REUSE2 ? "U" : "");
- return buf;
-}
-
-void ff_dprintf_ref(void *ctx, AVFilterBufferRef *ref, int end)
+void ff_dlog_link(void *ctx, AVFilterLink *link, int end)
{
- av_unused char buf[16];
- dprintf(ctx,
- "ref[%p buf:%p refcount:%d perms:%s data:%p linesize[%d, %d, %d, %d] pts:%"PRId64" pos:%"PRId64,
- ref, ref->buf, ref->buf->refcount, ff_get_ref_perms_string(buf, sizeof(buf), ref->perms), ref->data[0],
- ref->linesize[0], ref->linesize[1], ref->linesize[2], ref->linesize[3],
- ref->pts, ref->pos);
-
- if (ref->video) {
- dprintf(ctx, " a:%d/%d s:%dx%d i:%c",
- ref->video->pixel_aspect.num, ref->video->pixel_aspect.den,
- ref->video->w, ref->video->h,
- !ref->video->interlaced ? 'P' : /* Progressive */
- ref->video->top_field_first ? 'T' : 'B'); /* Top / Bottom */
+ if (link->type == AVMEDIA_TYPE_VIDEO) {
+ av_dlog(ctx,
+ "link[%p s:%dx%d fmt:%-16s %-16s->%-16s]%s",
+ link, link->w, link->h,
+ av_get_pix_fmt_name(link->format),
+ link->src ? link->src->filter->name : "",
+ link->dst ? link->dst->filter->name : "",
+ end ? "\n" : "");
+ } else {
+ char buf[128];
+ av_get_channel_layout_string(buf, sizeof(buf), -1, link->channel_layout);
+
+ av_dlog(ctx,
+ "link[%p r:%d cl:%s fmt:%-16s %-16s->%-16s]%s",
+ link, link->sample_rate, buf,
+ av_get_sample_fmt_name(link->format),
+ link->src ? link->src->filter->name : "",
+ link->dst ? link->dst->filter->name : "",
+ end ? "\n" : "");
}
- if (ref->audio) {
- dprintf(ctx, " cl:%"PRId64"d sn:%d s:%d sr:%d p:%d",
- ref->audio->channel_layout,
- ref->audio->samples_nb,
- ref->audio->size,
- ref->audio->sample_rate,
- ref->audio->planar);
- }
-
- dprintf(ctx, "]%s", end ? "\n" : "");
-}
-
-void ff_dprintf_link(void *ctx, AVFilterLink *link, int end)
-{
- dprintf(ctx,
- "link[%p s:%dx%d fmt:%-16s %-16s->%-16s]%s",
- link, link->w, link->h,
- av_pix_fmt_descriptors[link->format].name,
- link->src ? link->src->filter->name : "",
- link->dst ? link->dst->filter->name : "",
- end ? "\n" : "");
-}
-
-AVFilterBufferRef *avfilter_get_video_buffer(AVFilterLink *link, int perms, int w, int h)
-{
- AVFilterBufferRef *ret = NULL;
-
- av_unused char buf[16];
- FF_DPRINTF_START(NULL, get_video_buffer); ff_dprintf_link(NULL, link, 0);
- dprintf(NULL, " perms:%s w:%d h:%d\n", ff_get_ref_perms_string(buf, sizeof(buf), perms), w, h);
-
- if (link->dstpad->get_video_buffer)
- ret = link->dstpad->get_video_buffer(link, perms, w, h);
-
- if (!ret)
- ret = avfilter_default_get_video_buffer(link, perms, w, h);
-
- if (ret)
- ret->type = AVMEDIA_TYPE_VIDEO;
-
- FF_DPRINTF_START(NULL, get_video_buffer); ff_dprintf_link(NULL, link, 0); dprintf(NULL, " returning "); ff_dprintf_ref(NULL, ret, 1);
-
- return ret;
-}
-
-AVFilterBufferRef *
-avfilter_get_video_buffer_ref_from_arrays(uint8_t *data[4], int linesize[4], int perms,
- int w, int h, enum PixelFormat format)
-{
- AVFilterBuffer *pic = av_mallocz(sizeof(AVFilterBuffer));
- AVFilterBufferRef *picref = av_mallocz(sizeof(AVFilterBufferRef));
-
- if (!pic || !picref)
- goto fail;
-
- picref->buf = pic;
- picref->buf->free = ff_avfilter_default_free_buffer;
- if (!(picref->video = av_mallocz(sizeof(AVFilterBufferRefVideoProps))))
- goto fail;
-
- picref->video->w = w;
- picref->video->h = h;
-
- /* make sure the buffer gets read permission or it's useless for output */
- picref->perms = perms | AV_PERM_READ;
-
- pic->refcount = 1;
- picref->type = AVMEDIA_TYPE_VIDEO;
- picref->format = format;
-
- memcpy(pic->data, data, sizeof(pic->data));
- memcpy(pic->linesize, linesize, sizeof(pic->linesize));
- memcpy(picref->data, pic->data, sizeof(picref->data));
- memcpy(picref->linesize, pic->linesize, sizeof(picref->linesize));
-
- return picref;
-
-fail:
- if (picref && picref->video)
- av_free(picref->video);
- av_free(picref);
- av_free(pic);
- return NULL;
}
-AVFilterBufferRef *avfilter_get_audio_buffer(AVFilterLink *link, int perms,
- enum AVSampleFormat sample_fmt, int size,
- int64_t channel_layout, int planar)
+int ff_request_frame(AVFilterLink *link)
{
- AVFilterBufferRef *ret = NULL;
-
- if (link->dstpad->get_audio_buffer)
- ret = link->dstpad->get_audio_buffer(link, perms, sample_fmt, size, channel_layout, planar);
-
- if (!ret)
- ret = avfilter_default_get_audio_buffer(link, perms, sample_fmt, size, channel_layout, planar);
-
- if (ret)
- ret->type = AVMEDIA_TYPE_AUDIO;
-
- return ret;
-}
-
-int avfilter_request_frame(AVFilterLink *link)
-{
- FF_DPRINTF_START(NULL, request_frame); ff_dprintf_link(NULL, link, 1);
+ FF_DPRINTF_START(NULL, request_frame); ff_dlog_link(NULL, link, 1);
if (link->srcpad->request_frame)
return link->srcpad->request_frame(link);
else if (link->src->inputs[0])
- return avfilter_request_frame(link->src->inputs[0]);
+ return ff_request_frame(link->src->inputs[0]);
else return -1;
}
-int avfilter_poll_frame(AVFilterLink *link)
+int ff_poll_frame(AVFilterLink *link)
{
int i, min = INT_MAX;
if (link->srcpad->poll_frame)
return link->srcpad->poll_frame(link);
- for (i = 0; i < link->src->input_count; i++) {
+ for (i = 0; i < link->src->nb_inputs; i++) {
int val;
if (!link->src->inputs[i])
return -1;
- val = avfilter_poll_frame(link->src->inputs[i]);
+ val = ff_poll_frame(link->src->inputs[i]);
min = FFMIN(min, val);
}
return min;
}
-/* XXX: should we do the duplicating of the picture ref here, instead of
- * forcing the source filter to do it? */
-void avfilter_start_frame(AVFilterLink *link, AVFilterBufferRef *picref)
-{
- void (*start_frame)(AVFilterLink *, AVFilterBufferRef *);
- AVFilterPad *dst = link->dstpad;
-
- FF_DPRINTF_START(NULL, start_frame); ff_dprintf_link(NULL, link, 0); dprintf(NULL, " "); ff_dprintf_ref(NULL, picref, 1);
-
- if (!(start_frame = dst->start_frame))
- start_frame = avfilter_default_start_frame;
-
- /* prepare to copy the picture if it has insufficient permissions */
- if ((dst->min_perms & picref->perms) != dst->min_perms ||
- dst->rej_perms & picref->perms) {
- av_log(link->dst, AV_LOG_DEBUG,
- "frame copy needed (have perms %x, need %x, reject %x)\n",
- picref->perms,
- link->dstpad->min_perms, link->dstpad->rej_perms);
-
- link->cur_buf = avfilter_get_video_buffer(link, dst->min_perms, link->w, link->h);
- link->src_buf = picref;
- avfilter_copy_buffer_ref_props(link->cur_buf, link->src_buf);
- }
- else
- link->cur_buf = picref;
-
- start_frame(link, link->cur_buf);
-}
-
-void avfilter_end_frame(AVFilterLink *link)
-{
- void (*end_frame)(AVFilterLink *);
-
- if (!(end_frame = link->dstpad->end_frame))
- end_frame = avfilter_default_end_frame;
-
- end_frame(link);
-
- /* unreference the source picture if we're feeding the destination filter
- * a copied version dues to permission issues */
- if (link->src_buf) {
- avfilter_unref_buffer(link->src_buf);
- link->src_buf = NULL;
- }
-}
-
-void avfilter_draw_slice(AVFilterLink *link, int y, int h, int slice_dir)
-{
- uint8_t *src[4], *dst[4];
- int i, j, vsub;
- void (*draw_slice)(AVFilterLink *, int, int, int);
-
- FF_DPRINTF_START(NULL, draw_slice); ff_dprintf_link(NULL, link, 0); dprintf(NULL, " y:%d h:%d dir:%d\n", y, h, slice_dir);
-
- /* copy the slice if needed for permission reasons */
- if (link->src_buf) {
- vsub = av_pix_fmt_descriptors[link->format].log2_chroma_h;
-
- for (i = 0; i < 4; i++) {
- if (link->src_buf->data[i]) {
- src[i] = link->src_buf-> data[i] +
- (y >> (i==0 ? 0 : vsub)) * link->src_buf-> linesize[i];
- dst[i] = link->cur_buf->data[i] +
- (y >> (i==0 ? 0 : vsub)) * link->cur_buf->linesize[i];
- } else
- src[i] = dst[i] = NULL;
- }
-
- for (i = 0; i < 4; i++) {
- int planew =
- av_image_get_linesize(link->format, link->cur_buf->video->w, i);
-
- if (!src[i]) continue;
-
- for (j = 0; j < h >> (i==0 ? 0 : vsub); j++) {
- memcpy(dst[i], src[i], planew);
- src[i] += link->src_buf->linesize[i];
- dst[i] += link->cur_buf->linesize[i];
- }
- }
- }
-
- if (!(draw_slice = link->dstpad->draw_slice))
- draw_slice = avfilter_default_draw_slice;
- draw_slice(link, y, h, slice_dir);
-}
-
-void avfilter_filter_samples(AVFilterLink *link, AVFilterBufferRef *samplesref)
-{
- void (*filter_samples)(AVFilterLink *, AVFilterBufferRef *);
- AVFilterPad *dst = link->dstpad;
-
- if (!(filter_samples = dst->filter_samples))
- filter_samples = avfilter_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) {
-
- 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 = avfilter_default_get_audio_buffer(link, dst->min_perms,
- samplesref->format,
- samplesref->audio->size,
- samplesref->audio->channel_layout,
- samplesref->audio->planar);
- link->cur_buf->pts = samplesref->pts;
- link->cur_buf->audio->sample_rate = samplesref->audio->sample_rate;
-
- /* Copy actual data into new samples buffer */
- memcpy(link->cur_buf->data[0], samplesref->data[0], samplesref->audio->size);
-
- avfilter_unref_buffer(samplesref);
- } else
- link->cur_buf = samplesref;
-
- filter_samples(link, link->cur_buf);
-}
-
#define MAX_REGISTERED_AVFILTERS_NB 64
static AVFilter *registered_avfilters[MAX_REGISTERED_AVFILTERS_NB + 1];
{
int count;
+ if (!pads)
+ return 0;
+
for(count = 0; pads->name; count ++) pads ++;
return count;
}
}
static const AVClass avfilter_class = {
- "AVFilter",
- filter_name,
- NULL,
- LIBAVUTIL_VERSION_INT,
+ .class_name = "AVFilter",
+ .item_name = filter_name,
+ .version = LIBAVUTIL_VERSION_INT,
};
int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name)
return AVERROR(EINVAL);
ret = av_mallocz(sizeof(AVFilterContext));
+ if (!ret)
+ return AVERROR(ENOMEM);
ret->av_class = &avfilter_class;
ret->filter = filter;
ret->name = inst_name ? av_strdup(inst_name) : NULL;
- ret->priv = av_mallocz(filter->priv_size);
+ if (filter->priv_size) {
+ ret->priv = av_mallocz(filter->priv_size);
+ if (!ret->priv)
+ goto err;
+ }
- ret->input_count = pad_count(filter->inputs);
- if (ret->input_count) {
- ret->input_pads = av_malloc(sizeof(AVFilterPad) * ret->input_count);
- memcpy(ret->input_pads, filter->inputs, sizeof(AVFilterPad) * ret->input_count);
- ret->inputs = av_mallocz(sizeof(AVFilterLink*) * ret->input_count);
+ ret->nb_inputs = pad_count(filter->inputs);
+ if (ret->nb_inputs ) {
+ ret->input_pads = av_malloc(sizeof(AVFilterPad) * ret->nb_inputs);
+ if (!ret->input_pads)
+ goto err;
+ memcpy(ret->input_pads, filter->inputs, sizeof(AVFilterPad) * ret->nb_inputs);
+ ret->inputs = av_mallocz(sizeof(AVFilterLink*) * ret->nb_inputs);
+ if (!ret->inputs)
+ goto err;
}
- ret->output_count = pad_count(filter->outputs);
- if (ret->output_count) {
- ret->output_pads = av_malloc(sizeof(AVFilterPad) * ret->output_count);
- memcpy(ret->output_pads, filter->outputs, sizeof(AVFilterPad) * ret->output_count);
- ret->outputs = av_mallocz(sizeof(AVFilterLink*) * ret->output_count);
+ ret->nb_outputs = pad_count(filter->outputs);
+ if (ret->nb_outputs) {
+ ret->output_pads = av_malloc(sizeof(AVFilterPad) * ret->nb_outputs);
+ if (!ret->output_pads)
+ goto err;
+ memcpy(ret->output_pads, filter->outputs, sizeof(AVFilterPad) * ret->nb_outputs);
+ ret->outputs = av_mallocz(sizeof(AVFilterLink*) * ret->nb_outputs);
+ if (!ret->outputs)
+ goto err;
}
+#if FF_API_FOO_COUNT
+ ret->output_count = ret->nb_outputs;
+ ret->input_count = ret->nb_inputs;
+#endif
*filter_ctx = ret;
return 0;
+
+err:
+ av_freep(&ret->inputs);
+ av_freep(&ret->input_pads);
+ ret->nb_inputs = 0;
+ av_freep(&ret->outputs);
+ av_freep(&ret->output_pads);
+ ret->nb_outputs = 0;
+ av_freep(&ret->priv);
+ av_free(ret);
+ return AVERROR(ENOMEM);
}
void avfilter_free(AVFilterContext *filter)
if (filter->filter->uninit)
filter->filter->uninit(filter);
- for (i = 0; i < filter->input_count; i++) {
+ for (i = 0; i < filter->nb_inputs; i++) {
if ((link = filter->inputs[i])) {
if (link->src)
link->src->outputs[link->srcpad - link->src->output_pads] = NULL;
- avfilter_formats_unref(&link->in_formats);
- avfilter_formats_unref(&link->out_formats);
+ ff_formats_unref(&link->in_formats);
+ ff_formats_unref(&link->out_formats);
+ ff_formats_unref(&link->in_samplerates);
+ ff_formats_unref(&link->out_samplerates);
+ ff_channel_layouts_unref(&link->in_channel_layouts);
+ ff_channel_layouts_unref(&link->out_channel_layouts);
}
av_freep(&link);
}
- for (i = 0; i < filter->output_count; i++) {
+ for (i = 0; i < filter->nb_outputs; i++) {
if ((link = filter->outputs[i])) {
if (link->dst)
link->dst->inputs[link->dstpad - link->dst->input_pads] = NULL;
- avfilter_formats_unref(&link->in_formats);
- avfilter_formats_unref(&link->out_formats);
+ ff_formats_unref(&link->in_formats);
+ ff_formats_unref(&link->out_formats);
+ ff_formats_unref(&link->in_samplerates);
+ ff_formats_unref(&link->out_samplerates);
+ ff_channel_layouts_unref(&link->in_channel_layouts);
+ ff_channel_layouts_unref(&link->out_channel_layouts);
}
av_freep(&link);
}
int ret=0;
if (filter->filter->init)
- ret = filter->filter->init(filter, args, opaque);
+ ret = filter->filter->init(filter, args);
return ret;
}
+const char *avfilter_pad_get_name(AVFilterPad *pads, int pad_idx)
+{
+ return pads[pad_idx].name;
+}
+
+enum AVMediaType avfilter_pad_get_type(AVFilterPad *pads, int pad_idx)
+{
+ return pads[pad_idx].type;
+}
+
+static int default_filter_frame(AVFilterLink *link, AVFrame *frame)
+{
+ return ff_filter_frame(link->dst->outputs[0], frame);
+}
+
+int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
+{
+ int (*filter_frame)(AVFilterLink *, AVFrame *);
+ AVFilterPad *dst = link->dstpad;
+ AVFrame *out;
+
+ FF_DPRINTF_START(NULL, filter_frame);
+ ff_dlog_link(NULL, link, 1);
+
+ if (!(filter_frame = dst->filter_frame))
+ filter_frame = default_filter_frame;
+
+ /* copy the frame if needed */
+ if (dst->needs_writable && !av_frame_is_writable(frame)) {
+ av_log(link->dst, AV_LOG_DEBUG, "Copying data in avfilter.\n");
+
+ switch (link->type) {
+ case AVMEDIA_TYPE_VIDEO:
+ out = ff_get_video_buffer(link, link->w, link->h);
+ break;
+ case AVMEDIA_TYPE_AUDIO:
+ out = ff_get_audio_buffer(link, frame->nb_samples);
+ break;
+ default: return AVERROR(EINVAL);
+ }
+ if (!out) {
+ av_frame_free(&frame);
+ return AVERROR(ENOMEM);
+ }
+ av_frame_copy_props(out, frame);
+
+ switch (link->type) {
+ case AVMEDIA_TYPE_VIDEO:
+ av_image_copy(out->data, out->linesize, frame->data, frame->linesize,
+ frame->format, frame->width, frame->height);
+ break;
+ case AVMEDIA_TYPE_AUDIO:
+ av_samples_copy(out->extended_data, frame->extended_data,
+ 0, 0, frame->nb_samples,
+ av_get_channel_layout_nb_channels(frame->channel_layout),
+ frame->format);
+ break;
+ default: return AVERROR(EINVAL);
+ }
+
+ av_frame_free(&frame);
+ } else
+ out = frame;
+
+ return filter_frame(link, out);
+}
projects / ffmpeg / blobdiff