void avfilter_free(AVFilterContext *filter) { int i; AVFilterLink *link; if (!filter) return; if (filter->filter->uninit) filter->filter->uninit(filter); for (i = 0; i < filter->input_count; 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); avfilter_formats_unref(&link->in_samplerates); avfilter_formats_unref(&link->out_samplerates); ff_channel_layouts_unref(&link->in_channel_layouts); ff_channel_layouts_unref(&link->out_channel_layouts); } 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_channel_layouts_unref(&link->in_channel_layouts); ff_channel_layouts_unref(&link->out_channel_layouts); } avfilter_link_free(&link); } 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); while(filter->command_queue){ ff_command_queue_pop(filter); } av_free(filter); }
void avfilter_free(AVFilterContext *filter) { int i; if (!filter) return; if (filter->graph) ff_filter_graph_remove_filter(filter->graph, filter); if (filter->filter->uninit) filter->filter->uninit(filter); for (i = 0; i < filter->nb_inputs; i++) { free_link(filter->inputs[i]); } for (i = 0; i < filter->nb_outputs; i++) { free_link(filter->outputs[i]); } if (filter->filter->priv_class) av_opt_free(filter->priv); av_buffer_unref(&filter->hw_device_ctx); 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); while(filter->command_queue){ ff_command_queue_pop(filter); } av_opt_free(filter); av_expr_free(filter->enable); filter->enable = NULL; av_freep(&filter->var_values); av_freep(&filter->internal); av_free(filter); }
static int ff_filter_frame_framed(AVFilterLink *link, AVFrame *frame) { int (*filter_frame)(AVFilterLink *, AVFrame *); AVFilterContext *dstctx = link->dst; AVFilterPad *dst = link->dstpad; AVFrame *out = NULL; int ret; AVFilterCommand *cmd= link->dst->command_queue; int64_t pts; if (link->closed) { av_frame_free(&frame); return AVERROR_EOF; } 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: ret = AVERROR(EINVAL); goto fail; } if (!out) { ret = AVERROR(ENOMEM); goto fail; } ret = av_frame_copy_props(out, frame); if (ret < 0) goto fail; switch (link->type) { case AVMEDIA_TYPE_VIDEO: av_image_copy(out->data, out->linesize, (const uint8_t **)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: ret = AVERROR(EINVAL); goto fail; } av_frame_free(&frame); } else out = frame; while(cmd && cmd->time <= out->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; if (dstctx->enable_str) { int64_t pos = av_frame_get_pkt_pos(out); dstctx->var_values[VAR_N] = link->frame_count; dstctx->var_values[VAR_T] = pts == AV_NOPTS_VALUE ? NAN : pts * av_q2d(link->time_base); dstctx->var_values[VAR_W] = link->w; dstctx->var_values[VAR_H] = link->h; dstctx->var_values[VAR_POS] = pos == -1 ? NAN : pos; dstctx->is_disabled = fabs(av_expr_eval(dstctx->enable, dstctx->var_values, NULL)) < 0.5; if (dstctx->is_disabled && (dstctx->filter->flags & AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC)) filter_frame = default_filter_frame; } ret = filter_frame(link, out); link->frame_count++; link->frame_requested = 0; ff_update_link_current_pts(link, pts); return ret; fail: av_frame_free(&out); av_frame_free(&frame); return ret; }