* filter layer
* Copyright (c) 2007 Bobby Bingham
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg 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.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/pixdesc.h"
#include "libavutil/rational.h"
#include "libavutil/audioconvert.h"
+#include "libavutil/avassert.h"
+#include "libavutil/avstring.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
+char *ff_get_ref_perms_string(char *buf, size_t buf_size, int perms)
+{
+ snprintf(buf, buf_size, "%s%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" : "",
+ perms & AV_PERM_NEG_LINESIZES ? "n" : "");
+ return buf;
+}
+
+void ff_dlog_ref(void *ctx, AVFilterBufferRef *ref, int end)
+{
+ av_unused char buf[16];
+ av_dlog(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) {
+ av_dlog(ctx, " a:%d/%d s:%dx%d i:%c iskey:%d type:%c",
+ ref->video->sample_aspect_ratio.num, ref->video->sample_aspect_ratio.den,
+ ref->video->w, ref->video->h,
+ !ref->video->interlaced ? 'P' : /* Progressive */
+ ref->video->top_field_first ? 'T' : 'B', /* Top / Bottom */
+ ref->video->key_frame,
+ av_get_picture_type_char(ref->video->pict_type));
+ }
+ if (ref->audio) {
+ av_dlog(ctx, " cl:%"PRId64"d n:%d r:%d",
+ ref->audio->channel_layout,
+ ref->audio->nb_samples,
+ ref->audio->sample_rate);
+ }
+
+ av_dlog(ctx, "]%s", end ? "\n" : "");
+}
+
unsigned avfilter_version(void) {
+ av_assert0(LIBAVFILTER_VERSION_MICRO >= 100);
return LIBAVFILTER_VERSION_INT;
}
const char *avfilter_configuration(void)
{
- return LIBAV_CONFIGURATION;
+ return FFMPEG_CONFIGURATION;
}
const char *avfilter_license(void)
{
#define LICENSE_PREFIX "libavfilter license: "
- return LICENSE_PREFIX LIBAV_LICENSE + sizeof(LICENSE_PREFIX) - 1;
+ return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
}
-void avfilter_insert_pad(unsigned idx, unsigned *count, size_t padidx_off,
- AVFilterPad **pads, AVFilterLink ***links,
- AVFilterPad *newpad)
+void ff_command_queue_pop(AVFilterContext *filter)
+{
+ AVFilterCommand *c= filter->command_queue;
+ av_freep(&c->arg);
+ av_freep(&c->command);
+ filter->command_queue= c->next;
+ av_free(c);
+}
+
+void ff_insert_pad(unsigned idx, unsigned *count, size_t padidx_off,
+ AVFilterPad **pads, AVFilterLink ***links,
+ AVFilterPad *newpad)
{
unsigned i;
return 0;
}
+void avfilter_link_free(AVFilterLink **link)
+{
+ if (!*link)
+ return;
+
+ if ((*link)->pool)
+ ff_free_pool((*link)->pool);
+
+ av_freep(link);
+}
+
int avfilter_insert_filter(AVFilterLink *link, AVFilterContext *filt,
unsigned filt_srcpad_idx, unsigned filt_dstpad_idx)
{
/* 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)
- avfilter_formats_changeref(&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,
for (i = 0; i < filter->input_count; i ++) {
AVFilterLink *link = filter->inputs[i];
+ AVFilterLink *inlink = link->src->input_count ?
+ link->src->inputs[0] : NULL;
if (!link) continue;
+ link->current_pts = AV_NOPTS_VALUE;
+
switch (link->init_state) {
case AVLINK_INIT:
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->input_count != 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)
return ret;
- if (link->time_base.num == 0 && link->time_base.den == 0)
- link->time_base = link->src && link->src->input_count ?
- link->src->inputs[0]->time_base : AV_TIME_BASE_Q;
-
- if (link->sample_aspect_ratio.num == 0 && link->sample_aspect_ratio.den == 0)
- link->sample_aspect_ratio = link->src->input_count ?
- link->src->inputs[0]->sample_aspect_ratio : (AVRational){1,1};
+ switch (link->type) {
+ case AVMEDIA_TYPE_VIDEO:
+ if (!link->time_base.num && !link->time_base.den)
+ link->time_base = inlink ? inlink->time_base : AV_TIME_BASE_Q;
+
+ if (!link->sample_aspect_ratio.num && !link->sample_aspect_ratio.den)
+ link->sample_aspect_ratio = inlink ?
+ inlink->sample_aspect_ratio : (AVRational){1,1};
+
+ if (inlink) {
+ if (!link->w)
+ link->w = inlink->w;
+ if (!link->h)
+ link->h = inlink->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);
+ }
+ break;
+
+ case AVMEDIA_TYPE_AUDIO:
+ if (inlink) {
+ if (!link->sample_rate)
+ link->sample_rate = inlink->sample_rate;
+ if (!link->time_base.num && !link->time_base.den)
+ link->time_base = inlink->time_base;
+ } else if (!link->sample_rate) {
+ av_log(link->src, AV_LOG_ERROR,
+ "Audio source filters must set their output link's "
+ "sample_rate\n");
+ return AVERROR(EINVAL);
+ }
+
+ if (!link->time_base.num && !link->time_base.den)
+ link->time_base = (AVRational) {1, link->sample_rate};
+ }
if ((config_link = link->dstpad->config_props))
if ((ret = config_link(link)) < 0)
{
if (link->type == AVMEDIA_TYPE_VIDEO) {
av_dlog(ctx,
- "link[%p s:%dx%d fmt:%-16s %-16s->%-16s]%s",
+ "link[%p s:%dx%d fmt:%s %s->%s]%s",
link, link->w, link->h,
av_pix_fmt_descriptors[link->format].name,
link->src ? link->src->filter->name : "",
av_get_channel_layout_string(buf, sizeof(buf), -1, link->channel_layout);
av_dlog(ctx,
- "link[%p r:%"PRId64" cl:%s fmt:%-16s %-16s->%-16s]%s",
- link, link->sample_rate, buf,
+ "link[%p r:%d cl:%s fmt:%s %s->%s]%s",
+ link, (int)link->sample_rate, buf,
av_get_sample_fmt_name(link->format),
link->src ? link->src->filter->name : "",
link->dst ? link->dst->filter->name : "",
}
}
-int avfilter_request_frame(AVFilterLink *link)
+int ff_request_frame(AVFilterLink *link)
{
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;
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;
}
-#define MAX_REGISTERED_AVFILTERS_NB 64
+void ff_update_link_current_pts(AVFilterLink *link, int64_t pts)
+{
+ if (pts == AV_NOPTS_VALUE)
+ return;
+ link->current_pts = pts; /* TODO use duration */
+ if (link->graph && link->age_index >= 0)
+ ff_avfilter_graph_update_heap(link->graph, link);
+}
+
+int avfilter_process_command(AVFilterContext *filter, const char *cmd, const char *arg, char *res, int res_len, int flags)
+{
+ if(!strcmp(cmd, "ping")){
+ av_strlcatf(res, res_len, "pong from:%s %s\n", filter->filter->name, filter->name);
+ return 0;
+ }else if(filter->filter->process_command) {
+ return filter->filter->process_command(filter, cmd, arg, res, res_len, flags);
+ }
+ return AVERROR(ENOSYS);
+}
+
+#define MAX_REGISTERED_AVFILTERS_NB 128
static AVFilter *registered_avfilters[MAX_REGISTERED_AVFILTERS_NB + 1];
int avfilter_register(AVFilter *filter)
{
- if (next_registered_avfilter_idx == MAX_REGISTERED_AVFILTERS_NB)
- return -1;
+ if (next_registered_avfilter_idx == MAX_REGISTERED_AVFILTERS_NB) {
+ av_log(NULL, AV_LOG_ERROR,
+ "Maximum number of registered filters %d reached, "
+ "impossible to register filter with name '%s'\n",
+ MAX_REGISTERED_AVFILTERS_NB, filter->name);
+ return AVERROR(ENOMEM);
+ }
registered_avfilters[next_registered_avfilter_idx++] = filter;
return 0;
return count;
}
-static const char *filter_name(void *p)
+static char *default_filter_name(void *filter_ctx)
{
- AVFilterContext *filter = p;
- return filter->filter->name;
+ AVFilterContext *ctx = filter_ctx;
+ return ctx->name ? ctx->name : ctx->filter->name;
}
static const AVClass avfilter_class = {
- "AVFilter",
- filter_name,
- NULL,
- LIBAVUTIL_VERSION_INT,
+ .class_name = "AVFilter",
+ .item_name = default_filter_name,
+ .version = LIBAVUTIL_VERSION_INT,
+ .category = AV_CLASS_CATEGORY_FILTER,
};
int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name)
int i;
AVFilterLink *link;
+ if (!filter)
+ return;
+
if (filter->filter->uninit)
filter->filter->uninit(filter);
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);
- avfilter_formats_unref(&link->in_samplerates);
- avfilter_formats_unref(&link->out_samplerates);
+ 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);
+ avfilter_link_free(&link);
}
for (i = 0; i < filter->output_count; 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);
- avfilter_formats_unref(&link->in_samplerates);
- avfilter_formats_unref(&link->out_samplerates);
+ 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);
+ avfilter_link_free(&link);
}
av_freep(&filter->name);
av_freep(&filter->inputs);
av_freep(&filter->outputs);
av_freep(&filter->priv);
+ while(filter->command_queue){
+ ff_command_queue_pop(filter);
+ }
av_free(filter);
}
ret = filter->filter->init(filter, args, opaque);
return ret;
}
+
+#if FF_API_DEFAULT_CONFIG_OUTPUT_LINK
+void avfilter_insert_pad(unsigned idx, unsigned *count, size_t padidx_off,
+ AVFilterPad **pads, AVFilterLink ***links,
+ AVFilterPad *newpad)
+{
+ ff_insert_pad(idx, count, padidx_off, pads, links, newpad);
+}
+void avfilter_insert_inpad(AVFilterContext *f, unsigned index,
+ AVFilterPad *p)
+{
+ ff_insert_pad(index, &f->input_count, offsetof(AVFilterLink, dstpad),
+ &f->input_pads, &f->inputs, p);
+}
+void avfilter_insert_outpad(AVFilterContext *f, unsigned index,
+ AVFilterPad *p)
+{
+ ff_insert_pad(index, &f->output_count, offsetof(AVFilterLink, srcpad),
+ &f->output_pads, &f->outputs, p);
+}
+int avfilter_poll_frame(AVFilterLink *link)
+{
+ return ff_poll_frame(link);
+}
+int avfilter_request_frame(AVFilterLink *link)
+{
+ return ff_request_frame(link);
+}
+#endif
projects / ffmpeg / blobdiff