* Copyright (c) 2008 Vitor Sessak
* 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 <ctype.h>
#include <string.h>
+#include "libavutil/audioconvert.h"
#include "avfilter.h"
#include "avfiltergraph.h"
#include "internal.h"
return NULL;
}
+static int insert_conv_filter(AVFilterGraph *graph, AVFilterLink *link,
+ const char *filt_name, const char *filt_args)
+{
+ static int auto_count = 0, ret;
+ char inst_name[32];
+ AVFilterContext *filt_ctx;
+
+ snprintf(inst_name, sizeof(inst_name), "auto-inserted %s %d",
+ filt_name, auto_count++);
+
+ if ((ret = avfilter_graph_create_filter(&filt_ctx,
+ avfilter_get_by_name(filt_name),
+ inst_name, filt_args, NULL, graph)) < 0)
+ return ret;
+ if ((ret = avfilter_insert_filter(link, filt_ctx, 0, 0)) < 0)
+ return ret;
+
+ filt_ctx->filter->query_formats(filt_ctx);
+
+ if ( ((link = filt_ctx-> inputs[0]) &&
+ !avfilter_merge_formats(link->in_formats, link->out_formats)) ||
+ ((link = filt_ctx->outputs[0]) &&
+ !avfilter_merge_formats(link->in_formats, link->out_formats))
+ ) {
+ av_log(NULL, AV_LOG_ERROR,
+ "Impossible to convert between the formats supported by the filter "
+ "'%s' and the filter '%s'\n", link->src->name, link->dst->name);
+ return AVERROR(EINVAL);
+ }
+
+ if (link->type == AVMEDIA_TYPE_AUDIO &&
+ (((link = filt_ctx-> inputs[0]) &&
+ (!avfilter_merge_formats(link->in_chlayouts, link->out_chlayouts) ||
+ !avfilter_merge_formats(link->in_packing, link->out_packing))) ||
+ ((link = filt_ctx->outputs[0]) &&
+ (!avfilter_merge_formats(link->in_chlayouts, link->out_chlayouts) ||
+ !avfilter_merge_formats(link->in_packing, link->out_packing))))
+ ) {
+ av_log(NULL, AV_LOG_ERROR,
+ "Impossible to convert between the channel layouts/packing formats supported by the filter "
+ "'%s' and the filter '%s'\n", link->src->name, link->dst->name);
+ return AVERROR(EINVAL);
+ }
+
+ return 0;
+}
+
static int query_formats(AVFilterGraph *graph, AVClass *log_ctx)
{
int i, j, ret;
- int scaler_count = 0;
- char inst_name[30];
+ char filt_args[128];
/* ask all the sub-filters for their supported media formats */
for (i = 0; i < graph->filter_count; i++) {
for (j = 0; j < filter->input_count; j++) {
AVFilterLink *link = filter->inputs[j];
- if (link && link->in_formats != link->out_formats) {
- if (!avfilter_merge_formats(link->in_formats,
- link->out_formats)) {
- AVFilterContext *scale;
- char scale_args[256];
- /* couldn't merge format lists. auto-insert scale filter */
- snprintf(inst_name, sizeof(inst_name), "auto-inserted scaler %d",
- scaler_count++);
- snprintf(scale_args, sizeof(scale_args), "0:0:%s", graph->scale_sws_opts);
- if ((ret = avfilter_graph_create_filter(&scale, avfilter_get_by_name("scale"),
- inst_name, scale_args, NULL, graph)) < 0)
- return ret;
- if ((ret = avfilter_insert_filter(link, scale, 0, 0)) < 0)
- return ret;
-
- scale->filter->query_formats(scale);
- if (((link = scale-> inputs[0]) &&
- !avfilter_merge_formats(link->in_formats, link->out_formats)) ||
- ((link = scale->outputs[0]) &&
- !avfilter_merge_formats(link->in_formats, link->out_formats))) {
- av_log(log_ctx, AV_LOG_ERROR,
- "Impossible to convert between the formats supported by the filter "
- "'%s' and the filter '%s'\n", link->src->name, link->dst->name);
- return AVERROR(EINVAL);
- }
- }
+ if (!link) continue;
+
+ if (!link->in_formats || !link->out_formats)
+ return AVERROR(EINVAL);
+
+ if (link->type == AVMEDIA_TYPE_VIDEO &&
+ !avfilter_merge_formats(link->in_formats, link->out_formats)) {
+
+ /* couldn't merge format lists, auto-insert scale filter */
+ snprintf(filt_args, sizeof(filt_args), "0:0:%s",
+ graph->scale_sws_opts);
+ if (ret = insert_conv_filter(graph, link, "scale", filt_args))
+ return ret;
+ }
+ else if (link->type == AVMEDIA_TYPE_AUDIO) {
+ if (!link->in_chlayouts || !link->out_chlayouts ||
+ !link->in_packing || !link->out_packing)
+ return AVERROR(EINVAL);
+
+ if (!avfilter_merge_formats(link->in_formats, link->out_formats) ||
+ !avfilter_merge_formats(link->in_chlayouts, link->out_chlayouts) ||
+ !avfilter_merge_formats(link->in_packing, link->out_packing))
+ if (ret = insert_conv_filter(graph, link, "aconvert", NULL))
+ return ret;
}
}
}
link->in_formats->format_count = 1;
link->format = link->in_formats->formats[0];
-
avfilter_formats_unref(&link->in_formats);
avfilter_formats_unref(&link->out_formats);
+
+ if (link->type == AVMEDIA_TYPE_AUDIO) {
+ link->in_chlayouts->format_count = 1;
+ link->channel_layout = link->in_chlayouts->formats[0];
+ avfilter_formats_unref(&link->in_chlayouts);
+ avfilter_formats_unref(&link->out_chlayouts);
+
+ link->in_packing->format_count = 1;
+ link->planar = link->in_packing->formats[0] == AVFILTER_PLANAR;
+ avfilter_formats_unref(&link->in_packing);
+ avfilter_formats_unref(&link->out_packing);
+ }
}
static void pick_formats(AVFilterGraph *graph)
return 0;
}
+
+int avfilter_graph_send_command(AVFilterGraph *graph, const char *target, const char *cmd, const char *arg, char *res, int res_len, int flags)
+{
+ int i, r = AVERROR(ENOSYS);
+
+ if(!graph)
+ return r;
+
+ if((flags & AVFILTER_CMD_FLAG_ONE) && !(flags & AVFILTER_CMD_FLAG_FAST)) {
+ r=avfilter_graph_send_command(graph, target, cmd, arg, res, res_len, flags | AVFILTER_CMD_FLAG_FAST);
+ if(r != AVERROR(ENOSYS))
+ return r;
+ }
+
+ if(res_len && res)
+ res[0]= 0;
+
+ for (i = 0; i < graph->filter_count; i++) {
+ AVFilterContext *filter = graph->filters[i];
+ if(!strcmp(target, "all") || (filter->name && !strcmp(target, filter->name)) || !strcmp(target, filter->filter->name)){
+ r = avfilter_process_command(filter, cmd, arg, res, res_len, flags);
+ if(r != AVERROR(ENOSYS)) {
+ if((flags & AVFILTER_CMD_FLAG_ONE) || r<0)
+ return r;
+ }
+ }
+ }
+
+ return r;
+}
+
+int avfilter_graph_queue_command(AVFilterGraph *graph, const char *target, const char *command, const char *arg, int flags, double ts)
+{
+ int i;
+
+ if(!graph)
+ return 0;
+
+ for (i = 0; i < graph->filter_count; i++) {
+ AVFilterContext *filter = graph->filters[i];
+ if(filter && (!strcmp(target, "all") || !strcmp(target, filter->name) || !strcmp(target, filter->filter->name))){
+ AVFilterCommand **que = &filter->command_queue, *next;
+ while(*que && (*que)->time <= ts)
+ que = &(*que)->next;
+ next= *que;
+ *que= av_mallocz(sizeof(AVFilterCommand));
+ (*que)->command = av_strdup(command);
+ (*que)->arg = av_strdup(arg);
+ (*que)->time = ts;
+ (*que)->flags = flags;
+ (*que)->next = next;
+ if(flags & AVFILTER_CMD_FLAG_ONE)
+ return 0;
+ }
+ }
+
+ return 0;
+}
projects / ffmpeg / blobdiff