4dbbcdee |
/* |
16790dc3 |
* filter layer |
3fa77bde |
* Copyright (c) 2007 Bobby Bingham |
4dbbcdee |
*
* This file is part of FFmpeg.
*
* 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.
*
* 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 FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
|
03b07872 |
#include "libavutil/avassert.h"
#include "libavutil/avstring.h" |
a903f8f0 |
#include "libavutil/channel_layout.h" |
1d9c2dc8 |
#include "libavutil/common.h" |
565e4993 |
#include "libavutil/imgutils.h" |
b4b66456 |
#include "libavutil/pixdesc.h" |
867ae7aa |
#include "libavutil/rational.h" |
565e4993 |
#include "libavutil/samplefmt.h" |
472fb3bb |
|
565e4993 |
#include "audio.h" |
4dbbcdee |
#include "avfilter.h" |
ff1f51a8 |
#include "formats.h" |
9f0e31d2 |
#include "internal.h" |
0689d5e1 |
#include "audio.h" |
4dbbcdee |
|
82541d83 |
static int ff_filter_frame_framed(AVFilterLink *link, AVFilterBufferRef *frame);
|
1488c4dc |
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;
}
|
134815a0 |
void ff_tlog_ref(void *ctx, AVFilterBufferRef *ref, int end) |
1488c4dc |
{
av_unused char buf[16]; |
134815a0 |
ff_tlog(ctx, |
1488c4dc |
"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) { |
134815a0 |
ff_tlog(ctx, " a:%d/%d s:%dx%d i:%c iskey:%d type:%c", |
1488c4dc |
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) { |
134815a0 |
ff_tlog(ctx, " cl:%"PRId64"d n:%d r:%d", |
1488c4dc |
ref->audio->channel_layout,
ref->audio->nb_samples,
ref->audio->sample_rate);
}
|
134815a0 |
ff_tlog(ctx, "]%s", end ? "\n" : ""); |
1488c4dc |
}
|
540f1c7b |
unsigned avfilter_version(void) { |
f810ab45 |
av_assert0(LIBAVFILTER_VERSION_MICRO >= 100); |
540f1c7b |
return LIBAVFILTER_VERSION_INT;
}
|
41600690 |
const char *avfilter_configuration(void) |
c1736936 |
{ |
e528cdac |
return FFMPEG_CONFIGURATION; |
c1736936 |
}
|
41600690 |
const char *avfilter_license(void) |
c1736936 |
{
#define LICENSE_PREFIX "libavfilter license: " |
0cb88628 |
return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1; |
c1736936 |
}
|
1cbf7fb4 |
void ff_command_queue_pop(AVFilterContext *filter) |
3d8176d2 |
{
AVFilterCommand *c= filter->command_queue;
av_freep(&c->arg);
av_freep(&c->command);
filter->command_queue= c->next;
av_free(c);
}
|
fa417fcd |
void ff_insert_pad(unsigned idx, unsigned *count, size_t padidx_off,
AVFilterPad **pads, AVFilterLink ***links,
AVFilterPad *newpad) |
24618441 |
{
unsigned i;
idx = FFMIN(idx, *count);
*pads = av_realloc(*pads, sizeof(AVFilterPad) * (*count + 1));
*links = av_realloc(*links, sizeof(AVFilterLink*) * (*count + 1));
memmove(*pads +idx+1, *pads +idx, sizeof(AVFilterPad) * (*count-idx));
memmove(*links+idx+1, *links+idx, sizeof(AVFilterLink*) * (*count-idx));
memcpy(*pads+idx, newpad, sizeof(AVFilterPad));
(*links)[idx] = NULL;
|
ca857431 |
(*count)++; |
5bd291e2 |
for (i = idx + 1; i < *count; i++)
if ((*links)[i])
(*(unsigned *)((uint8_t *) (*links)[i] + padidx_off))++; |
24618441 |
}
|
4dbbcdee |
int avfilter_link(AVFilterContext *src, unsigned srcpad,
AVFilterContext *dst, unsigned dstpad)
{
AVFilterLink *link;
|
9baeff95 |
if (src->nb_outputs <= srcpad || dst->nb_inputs <= dstpad ||
src->outputs[srcpad] || dst->inputs[dstpad]) |
4dbbcdee |
return -1;
|
891aeeee |
if (src->output_pads[srcpad].type != dst->input_pads[dstpad].type) {
av_log(src, AV_LOG_ERROR, |
bd9939f4 |
"Media type mismatch between the '%s' filter output pad %d (%s) and the '%s' filter input pad %d (%s)\n",
src->name, srcpad, (char *)av_x_if_null(av_get_media_type_string(src->output_pads[srcpad].type), "?"),
dst->name, dstpad, (char *)av_x_if_null(av_get_media_type_string(dst-> input_pads[dstpad].type), "?")); |
891aeeee |
return AVERROR(EINVAL);
}
|
4dbbcdee |
src->outputs[srcpad] = |
b3431ecd |
dst-> inputs[dstpad] = link = av_mallocz(sizeof(AVFilterLink)); |
4dbbcdee |
|
1653c11f |
link->src = src;
link->dst = dst; |
acc0490f |
link->srcpad = &src->output_pads[srcpad];
link->dstpad = &dst->input_pads[dstpad]; |
bdab614b |
link->type = src->output_pads[srcpad].type; |
ac627b3d |
av_assert0(AV_PIX_FMT_NONE == -1 && AV_SAMPLE_FMT_NONE == -1); |
bdab614b |
link->format = -1; |
01942f1d |
return 0;
}
|
e977ca26 |
void avfilter_link_free(AVFilterLink **link)
{
if (!*link)
return;
|
f068ce57 |
if ((*link)->pool) |
1cbf7fb4 |
ff_free_pool((*link)->pool); |
f068ce57 |
|
c2271fa7 |
avfilter_unref_bufferp(&(*link)->partial_buf);
|
e977ca26 |
av_freep(link);
}
|
238edd2f |
int avfilter_link_get_channels(AVFilterLink *link)
{
return link->channels;
}
|
beeba916 |
void avfilter_link_set_closed(AVFilterLink *link, int closed)
{
link->closed = closed;
}
|
52362e9d |
int avfilter_insert_filter(AVFilterLink *link, AVFilterContext *filt, |
486adc55 |
unsigned filt_srcpad_idx, unsigned filt_dstpad_idx) |
52362e9d |
{ |
db9dfa3c |
int ret; |
acc0490f |
unsigned dstpad_idx = link->dstpad - link->dst->input_pads;
|
1a49a169 |
av_log(link->dst, AV_LOG_VERBOSE, "auto-inserting filter '%s' " |
08f8b51f |
"between the filter '%s' and the filter '%s'\n",
filt->name, link->src->name, link->dst->name); |
52362e9d |
|
acc0490f |
link->dst->inputs[dstpad_idx] = NULL; |
486adc55 |
if ((ret = avfilter_link(filt, filt_dstpad_idx, link->dst, dstpad_idx)) < 0) { |
52362e9d |
/* failed to link output filter to new filter */ |
acc0490f |
link->dst->inputs[dstpad_idx] = link; |
db9dfa3c |
return ret; |
52362e9d |
}
/* re-hookup the link to the new destination filter we inserted */
link->dst = filt; |
486adc55 |
link->dstpad = &filt->input_pads[filt_srcpad_idx];
filt->inputs[filt_srcpad_idx] = link; |
52362e9d |
|
bdab614b |
/* if any information on supported media formats already exists on the |
07d0bba5 |
* link, we need to preserve that */ |
ca857431 |
if (link->out_formats) |
b74a1da4 |
ff_formats_changeref(&link->out_formats, |
486adc55 |
&filt->outputs[filt_dstpad_idx]->out_formats); |
ad60b3b1 |
|
ff1f51a8 |
if (link->out_samplerates) |
b74a1da4 |
ff_formats_changeref(&link->out_samplerates, |
ff1f51a8 |
&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); |
07d0bba5 |
|
52362e9d |
return 0;
}
|
69818105 |
int avfilter_config_links(AVFilterContext *filter) |
01942f1d |
{
int (*config_link)(AVFilterLink *); |
69818105 |
unsigned i; |
69f73a89 |
int ret; |
69818105 |
|
9baeff95 |
for (i = 0; i < filter->nb_inputs; i ++) { |
e079d22e |
AVFilterLink *link = filter->inputs[i]; |
c7b9eab2 |
AVFilterLink *inlink = link->src->nb_inputs ? |
553c5e9f |
link->src->inputs[0] : NULL; |
d21cbbff |
|
ca857431 |
if (!link) continue; |
69818105 |
|
2ce79727 |
link->current_pts = AV_NOPTS_VALUE;
|
ca857431 |
switch (link->init_state) { |
69818105 |
case AVLINK_INIT:
continue;
case AVLINK_STARTINIT: |
7a9fd2a0 |
av_log(filter, AV_LOG_INFO, "circular filter chain detected\n");
return 0; |
69818105 |
case AVLINK_UNINIT:
link->init_state = AVLINK_STARTINIT;
|
69f73a89 |
if ((ret = avfilter_config_links(link->src)) < 0)
return ret; |
4dbbcdee |
|
5f68a91b |
if (!(config_link = link->srcpad->config_props)) { |
9baeff95 |
if (link->src->nb_inputs != 1) { |
5f68a91b |
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);
} |
65a80ee1 |
} 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); |
69f73a89 |
return ret; |
65a80ee1 |
} |
102fb0e3 |
|
5f68a91b |
switch (link->type) {
case AVMEDIA_TYPE_VIDEO:
if (!link->time_base.num && !link->time_base.den) |
553c5e9f |
link->time_base = inlink ? inlink->time_base : AV_TIME_BASE_Q; |
5f68a91b |
if (!link->sample_aspect_ratio.num && !link->sample_aspect_ratio.den) |
553c5e9f |
link->sample_aspect_ratio = inlink ?
inlink->sample_aspect_ratio : (AVRational){1,1}; |
5f68a91b |
|
7b42036b |
if (inlink && !link->frame_rate.num && !link->frame_rate.den)
link->frame_rate = inlink->frame_rate;
|
553c5e9f |
if (inlink) { |
5f68a91b |
if (!link->w) |
553c5e9f |
link->w = inlink->w; |
5f68a91b |
if (!link->h) |
553c5e9f |
link->h = inlink->h; |
5f68a91b |
} 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: |
553c5e9f |
if (inlink) { |
71c644ce |
if (!link->time_base.num && !link->time_base.den) |
553c5e9f |
link->time_base = inlink->time_base; |
5f68a91b |
} |
71c644ce |
if (!link->time_base.num && !link->time_base.den)
link->time_base = (AVRational) {1, link->sample_rate}; |
5f68a91b |
} |
70c275f8 |
|
acc0490f |
if ((config_link = link->dstpad->config_props)) |
65a80ee1 |
if ((ret = config_link(link)) < 0) {
av_log(link->src, AV_LOG_ERROR,
"Failed to configure input pad on %s\n",
link->dst->name); |
69f73a89 |
return ret; |
65a80ee1 |
} |
102fb0e3 |
|
69818105 |
link->init_state = AVLINK_INIT;
}
}
|
4dbbcdee |
return 0;
}
|
134815a0 |
void ff_tlog_link(void *ctx, AVFilterLink *link, int end) |
96da1c51 |
{ |
7986e34d |
if (link->type == AVMEDIA_TYPE_VIDEO) { |
134815a0 |
ff_tlog(ctx, |
5764301d |
"link[%p s:%dx%d fmt:%s %s->%s]%s", |
1d5b1885 |
link, link->w, link->h, |
59ee9f78 |
av_get_pix_fmt_name(link->format), |
1d5b1885 |
link->src ? link->src->filter->name : "",
link->dst ? link->dst->filter->name : "",
end ? "\n" : ""); |
7986e34d |
} else {
char buf[128];
av_get_channel_layout_string(buf, sizeof(buf), -1, link->channel_layout);
|
134815a0 |
ff_tlog(ctx, |
5764301d |
"link[%p r:%d cl:%s fmt:%s %s->%s]%s", |
4381bddc |
link, (int)link->sample_rate, buf, |
7986e34d |
av_get_sample_fmt_name(link->format),
link->src ? link->src->filter->name : "",
link->dst ? link->dst->filter->name : "",
end ? "\n" : "");
} |
96da1c51 |
}
|
803391f7 |
int ff_request_frame(AVFilterLink *link) |
4dbbcdee |
{ |
0689d5e1 |
int ret = -1; |
134815a0 |
FF_TPRINTF_START(NULL, request_frame); ff_tlog_link(NULL, link, 1); |
96da1c51 |
|
beeba916 |
if (link->closed)
return AVERROR_EOF; |
acc0490f |
if (link->srcpad->request_frame) |
0689d5e1 |
ret = link->srcpad->request_frame(link); |
ca857431 |
else if (link->src->inputs[0]) |
0689d5e1 |
ret = ff_request_frame(link->src->inputs[0]);
if (ret == AVERROR_EOF && link->partial_buf) {
AVFilterBufferRef *pbuf = link->partial_buf;
link->partial_buf = NULL; |
82541d83 |
ff_filter_frame_framed(link, pbuf); |
0689d5e1 |
return 0;
} |
beeba916 |
if (ret == AVERROR_EOF)
link->closed = 1; |
0689d5e1 |
return ret; |
4dbbcdee |
}
|
803391f7 |
int ff_poll_frame(AVFilterLink *link) |
7b02c484 |
{ |
ca857431 |
int i, min = INT_MAX; |
7b02c484 |
|
acc0490f |
if (link->srcpad->poll_frame)
return link->srcpad->poll_frame(link); |
c245ddf2 |
|
9baeff95 |
for (i = 0; i < link->src->nb_inputs; i++) { |
9dd08b4e |
int val; |
ca857431 |
if (!link->src->inputs[i]) |
c245ddf2 |
return -1; |
803391f7 |
val = ff_poll_frame(link->src->inputs[i]); |
9dd08b4e |
min = FFMIN(min, val); |
c245ddf2 |
} |
7b02c484 |
return min;
}
|
01590329 |
void ff_update_link_current_pts(AVFilterLink *link, int64_t pts) |
2ce79727 |
{ |
75d5624c |
if (pts == AV_NOPTS_VALUE) |
2ce79727 |
return; |
d06bfda0 |
link->current_pts = av_rescale_q(pts, link->time_base, AV_TIME_BASE_Q);
/* TODO use duration */ |
2ce79727 |
if (link->graph && link->age_index >= 0)
ff_avfilter_graph_update_heap(link->graph, link);
}
|
1e5014c7 |
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);
}
|
1fc70771 |
#define MAX_REGISTERED_AVFILTERS_NB 128 |
86a60fa1 |
static AVFilter *registered_avfilters[MAX_REGISTERED_AVFILTERS_NB + 1];
static int next_registered_avfilter_idx = 0; |
3555d2e8 |
|
05decb00 |
AVFilter *avfilter_get_by_name(const char *name) |
4dbbcdee |
{ |
86a60fa1 |
int i; |
6d8c67a7 |
|
86a60fa1 |
for (i = 0; registered_avfilters[i]; i++)
if (!strcmp(registered_avfilters[i]->name, name))
return registered_avfilters[i]; |
4dbbcdee |
return NULL;
}
|
86a60fa1 |
int avfilter_register(AVFilter *filter) |
4dbbcdee |
{ |
f6dd1455 |
int i;
|
21779087 |
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);
} |
6d8c67a7 |
|
f6dd1455 |
for(i=0; filter->inputs && filter->inputs[i].name; i++) {
const AVFilterPad *input = &filter->inputs[i];
av_assert0( !input->filter_frame |
c0c0b196 |
|| (!input->start_frame && !input->end_frame)); |
f6dd1455 |
}
|
86a60fa1 |
registered_avfilters[next_registered_avfilter_idx++] = filter;
return 0; |
4dbbcdee |
}
|
1433c4ab |
AVFilter **av_filter_next(AVFilter **filter)
{
return filter ? ++filter : ®istered_avfilters[0];
}
|
4dbbcdee |
void avfilter_uninit(void)
{ |
86a60fa1 |
memset(registered_avfilters, 0, sizeof(registered_avfilters));
next_registered_avfilter_idx = 0; |
4dbbcdee |
}
static int pad_count(const AVFilterPad *pads)
{
int count;
|
1fce361d |
if (!pads)
return 0;
|
05decb00 |
for(count = 0; pads->name; count ++) pads ++; |
4dbbcdee |
return count;
}
|
ee1748ab |
static const char *default_filter_name(void *filter_ctx) |
4dbbcdee |
{ |
4d6a8a2b |
AVFilterContext *ctx = filter_ctx;
return ctx->name ? ctx->name : ctx->filter->name; |
4dbbcdee |
}
|
5c0d8bc4 |
static void *filter_child_next(void *obj, void *prev)
{
AVFilterContext *ctx = obj;
if (!prev && ctx->filter && ctx->filter->priv_class)
return ctx->priv;
return NULL;
}
static const AVClass *filter_child_class_next(const AVClass *prev)
{
AVFilter **filter_ptr = NULL;
/* find the filter that corresponds to prev */
while (prev && *(filter_ptr = av_filter_next(filter_ptr)))
if ((*filter_ptr)->priv_class == prev)
break;
/* could not find filter corresponding to prev */
if (prev && !(*filter_ptr))
return NULL;
/* find next filter with specific options */
while (*(filter_ptr = av_filter_next(filter_ptr)))
if ((*filter_ptr)->priv_class)
return (*filter_ptr)->priv_class;
return NULL;
}
|
b049ad50 |
static const AVClass avfilter_class = { |
908c045f |
.class_name = "AVFilter", |
ad347bf4 |
.item_name = default_filter_name, |
908c045f |
.version = LIBAVUTIL_VERSION_INT, |
54101214 |
.category = AV_CLASS_CATEGORY_FILTER, |
5c0d8bc4 |
.child_next = filter_child_next,
.child_class_next = filter_child_class_next, |
b049ad50 |
};
|
5c0d8bc4 |
const AVClass *avfilter_get_class(void)
{
return &avfilter_class;
}
|
84c03869 |
int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name) |
4dbbcdee |
{ |
8f618f4c |
AVFilterContext *ret; |
84c03869 |
*filter_ctx = NULL; |
8f618f4c |
if (!filter) |
84c03869 |
return AVERROR(EINVAL); |
8f618f4c |
|
689a5f49 |
ret = av_mallocz(sizeof(AVFilterContext)); |
0699dbb8 |
if (!ret)
return AVERROR(ENOMEM); |
4dbbcdee |
|
b049ad50 |
ret->av_class = &avfilter_class; |
4dbbcdee |
ret->filter = filter; |
2350e69c |
ret->name = inst_name ? av_strdup(inst_name) : NULL; |
0699dbb8 |
if (filter->priv_size) { |
f8af93ab |
ret->priv = av_mallocz(filter->priv_size); |
0699dbb8 |
if (!ret->priv)
goto err;
} |
4dbbcdee |
|
9baeff95 |
ret->nb_inputs = pad_count(filter->inputs);
if (ret->nb_inputs ) {
ret->input_pads = av_malloc(sizeof(AVFilterPad) * ret->nb_inputs); |
0699dbb8 |
if (!ret->input_pads)
goto err; |
9baeff95 |
memcpy(ret->input_pads, filter->inputs, sizeof(AVFilterPad) * ret->nb_inputs);
ret->inputs = av_mallocz(sizeof(AVFilterLink*) * ret->nb_inputs); |
0699dbb8 |
if (!ret->inputs)
goto err; |
689a5f49 |
} |
c5ef7d7b |
|
9baeff95 |
ret->nb_outputs = pad_count(filter->outputs);
if (ret->nb_outputs) {
ret->output_pads = av_malloc(sizeof(AVFilterPad) * ret->nb_outputs); |
0699dbb8 |
if (!ret->output_pads)
goto err; |
9baeff95 |
memcpy(ret->output_pads, filter->outputs, sizeof(AVFilterPad) * ret->nb_outputs);
ret->outputs = av_mallocz(sizeof(AVFilterLink*) * ret->nb_outputs); |
0699dbb8 |
if (!ret->outputs)
goto err; |
689a5f49 |
} |
9baeff95 |
#if FF_API_FOO_COUNT
ret->output_count = ret->nb_outputs;
ret->input_count = ret->nb_inputs;
#endif |
7d0e1392 |
|
84c03869 |
*filter_ctx = ret;
return 0; |
0699dbb8 |
err:
av_freep(&ret->inputs);
av_freep(&ret->input_pads); |
9baeff95 |
ret->nb_inputs = 0; |
0699dbb8 |
av_freep(&ret->outputs);
av_freep(&ret->output_pads); |
9baeff95 |
ret->nb_outputs = 0; |
0699dbb8 |
av_freep(&ret->priv);
av_free(ret);
return AVERROR(ENOMEM); |
4dbbcdee |
}
|
24de0edb |
void avfilter_free(AVFilterContext *filter) |
4dbbcdee |
{
int i; |
b1a05b82 |
AVFilterLink *link; |
4dbbcdee |
|
c5f9a66f |
if (!filter)
return;
|
ca857431 |
if (filter->filter->uninit) |
4dbbcdee |
filter->filter->uninit(filter);
|
9baeff95 |
for (i = 0; i < filter->nb_inputs; i++) { |
b1a05b82 |
if ((link = filter->inputs[i])) {
if (link->src) |
acc0490f |
link->src->outputs[link->srcpad - link->src->output_pads] = NULL; |
b74a1da4 |
ff_formats_unref(&link->in_formats);
ff_formats_unref(&link->out_formats);
ff_formats_unref(&link->in_samplerates);
ff_formats_unref(&link->out_samplerates); |
ff1f51a8 |
ff_channel_layouts_unref(&link->in_channel_layouts);
ff_channel_layouts_unref(&link->out_channel_layouts); |
f3b90d25 |
} |
e977ca26 |
avfilter_link_free(&link); |
4dbbcdee |
} |
9baeff95 |
for (i = 0; i < filter->nb_outputs; i++) { |
b1a05b82 |
if ((link = filter->outputs[i])) {
if (link->dst) |
acc0490f |
link->dst->inputs[link->dstpad - link->dst->input_pads] = NULL; |
b74a1da4 |
ff_formats_unref(&link->in_formats);
ff_formats_unref(&link->out_formats);
ff_formats_unref(&link->in_samplerates);
ff_formats_unref(&link->out_samplerates); |
ff1f51a8 |
ff_channel_layouts_unref(&link->in_channel_layouts);
ff_channel_layouts_unref(&link->out_channel_layouts); |
f3b90d25 |
} |
e977ca26 |
avfilter_link_free(&link); |
4dbbcdee |
}
|
f4cb4462 |
av_freep(&filter->name);
av_freep(&filter->input_pads);
av_freep(&filter->output_pads);
av_freep(&filter->inputs);
av_freep(&filter->outputs);
av_freep(&filter->priv); |
3d8176d2 |
while(filter->command_queue){ |
1cbf7fb4 |
ff_command_queue_pop(filter); |
3d8176d2 |
} |
4dbbcdee |
av_free(filter);
}
|
a360f71e |
int avfilter_init_filter(AVFilterContext *filter, const char *args, void *opaque) |
4dbbcdee |
{ |
e079d22e |
int ret=0; |
4dbbcdee |
|
21d56098 |
if (filter->filter->init_opaque)
ret = filter->filter->init_opaque(filter, args, opaque);
else if (filter->filter->init) |
a5e8c41c |
ret = filter->filter->init(filter, args); |
e079d22e |
return ret; |
4dbbcdee |
} |
88c3b87b |
|
84b9fbe0 |
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; |
4dbbcdee |
} |
3ed483cd |
|
82541d83 |
static int default_filter_frame(AVFilterLink *link, AVFilterBufferRef *frame)
{
return ff_filter_frame(link->dst->outputs[0], frame);
}
static int ff_filter_frame_framed(AVFilterLink *link, AVFilterBufferRef *frame)
{
int (*filter_frame)(AVFilterLink *, AVFilterBufferRef *);
AVFilterPad *src = link->srcpad;
AVFilterPad *dst = link->dstpad;
AVFilterBufferRef *out;
int perms, ret;
AVFilterCommand *cmd= link->dst->command_queue;
int64_t pts;
if (link->closed) {
avfilter_unref_buffer(frame);
return AVERROR_EOF;
}
if (!(filter_frame = dst->filter_frame))
filter_frame = default_filter_frame;
av_assert1((frame->perms & src->min_perms) == src->min_perms);
frame->perms &= ~ src->rej_perms;
perms = frame->perms;
if (frame->linesize[0] < 0)
perms |= AV_PERM_NEG_LINESIZES;
/* prepare to copy the frame if the buffer has insufficient permissions */
if ((dst->min_perms & perms) != dst->min_perms ||
dst->rej_perms & perms) {
av_log(link->dst, AV_LOG_DEBUG,
"Copying data in avfilter (have perms %x, need %x, reject %x)\n",
perms, link->dstpad->min_perms, link->dstpad->rej_perms);
/* Maybe use ff_copy_buffer_ref instead? */
switch (link->type) {
case AVMEDIA_TYPE_VIDEO:
out = ff_get_video_buffer(link, dst->min_perms,
link->w, link->h);
break;
case AVMEDIA_TYPE_AUDIO:
out = ff_get_audio_buffer(link, dst->min_perms,
frame->audio->nb_samples);
break;
default: return AVERROR(EINVAL);
}
if (!out) {
avfilter_unref_buffer(frame);
return AVERROR(ENOMEM);
}
avfilter_copy_buffer_ref_props(out, frame);
switch (link->type) {
case AVMEDIA_TYPE_VIDEO:
av_image_copy(out->data, out->linesize, frame->data, frame->linesize,
frame->format, frame->video->w, frame->video->h);
break;
case AVMEDIA_TYPE_AUDIO:
av_samples_copy(out->extended_data, frame->extended_data,
0, 0, frame->audio->nb_samples,
av_get_channel_layout_nb_channels(frame->audio->channel_layout),
frame->format);
break;
default: return AVERROR(EINVAL);
}
avfilter_unref_buffer(frame);
} else
out = frame;
while(cmd && cmd->time <= frame->pts * av_q2d(link->time_base)){
av_log(link->dst, AV_LOG_DEBUG,
"Processing command time:%f command:%s arg:%s\n",
cmd->time, cmd->command, cmd->arg);
avfilter_process_command(link->dst, cmd->command, cmd->arg, 0, 0, cmd->flags);
ff_command_queue_pop(link->dst);
cmd= link->dst->command_queue;
}
pts = out->pts;
ret = filter_frame(link, out);
ff_update_link_current_pts(link, pts);
return ret;
}
static int ff_filter_frame_needs_framing(AVFilterLink *link, AVFilterBufferRef *frame)
{
int insamples = frame->audio->nb_samples, inpos = 0, nb_samples;
AVFilterBufferRef *pbuf = link->partial_buf;
int nb_channels = frame->audio->channels;
int ret = 0;
/* Handle framing (min_samples, max_samples) */
while (insamples) {
if (!pbuf) {
AVRational samples_tb = { 1, link->sample_rate };
int perms = link->dstpad->min_perms | AV_PERM_WRITE;
pbuf = ff_get_audio_buffer(link, perms, link->partial_buf_size);
if (!pbuf) {
av_log(link->dst, AV_LOG_WARNING,
"Samples dropped due to memory allocation failure.\n");
return 0;
}
avfilter_copy_buffer_ref_props(pbuf, frame);
pbuf->pts = frame->pts +
av_rescale_q(inpos, samples_tb, link->time_base);
pbuf->audio->nb_samples = 0;
}
nb_samples = FFMIN(insamples,
link->partial_buf_size - pbuf->audio->nb_samples);
av_samples_copy(pbuf->extended_data, frame->extended_data,
pbuf->audio->nb_samples, inpos,
nb_samples, nb_channels, link->format);
inpos += nb_samples;
insamples -= nb_samples;
pbuf->audio->nb_samples += nb_samples;
if (pbuf->audio->nb_samples >= link->min_samples) {
ret = ff_filter_frame_framed(link, pbuf);
pbuf = NULL;
}
}
avfilter_unref_buffer(frame);
link->partial_buf = pbuf;
return ret;
}
|
3ed483cd |
int ff_filter_frame(AVFilterLink *link, AVFilterBufferRef *frame)
{
FF_TPRINTF_START(NULL, filter_frame); ff_tlog_link(NULL, link, 1); ff_tlog(NULL, " "); ff_tlog_ref(NULL, frame, 1);
|
82541d83 |
/* Consistency checks */
if (link->type == AVMEDIA_TYPE_VIDEO) {
if (strcmp(link->dst->filter->name, "scale")) {
av_assert1(frame->format == link->format);
av_assert1(frame->video->w == link->w);
av_assert1(frame->video->h == link->h);
}
} else {
av_assert1(frame->format == link->format);
av_assert1(frame->audio->channels == link->channels);
av_assert1(frame->audio->channel_layout == link->channel_layout);
av_assert1(frame->audio->sample_rate == link->sample_rate);
}
/* Go directly to actual filtering if possible */
if (link->type == AVMEDIA_TYPE_AUDIO &&
link->min_samples &&
(link->partial_buf ||
frame->audio->nb_samples < link->min_samples ||
frame->audio->nb_samples > link->max_samples)) {
return ff_filter_frame_needs_framing(link, frame);
} else {
return ff_filter_frame_framed(link, frame); |
3ed483cd |
}
} |