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fftools/ffmpeg: move filtering functions to ffmpeg_filter

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This commit is contained in:
Anton Khirnov
2023-04-18 15:24:46 +02:00
parent 0add05bd3a
commit eb9ce9de3b
3 changed files with 223 additions and 215 deletions
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202
fftools/ffmpeg_filter.c
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@@ -36,6 +36,7 @@
#include "libavutil/pixfmt.h"
#include "libavutil/imgutils.h"
#include "libavutil/samplefmt.h"
#include "libavutil/timestamp.h"
// FIXME: YUV420P etc. are actually supported with full color range,
// yet the latter information isn't available here.
@@ -1300,3 +1301,204 @@ int filtergraph_is_simple(FilterGraph *fg)
{
return !fg->graph_desc;
}
int reap_filters(int flush)
{
AVFrame *filtered_frame = NULL;
/* Reap all buffers present in the buffer sinks */
for (OutputStream *ost = ost_iter(NULL); ost; ost = ost_iter(ost)) {
AVFilterContext *filter;
int ret = 0;
if (!ost->filter || !ost->filter->graph->graph)
continue;
filter = ost->filter->filter;
filtered_frame = ost->filtered_frame;
while (1) {
ret = av_buffersink_get_frame_flags(filter, filtered_frame,
AV_BUFFERSINK_FLAG_NO_REQUEST);
if (ret < 0) {
if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
av_log(NULL, AV_LOG_WARNING,
"Error in av_buffersink_get_frame_flags(): %s\n", av_err2str(ret));
} else if (flush && ret == AVERROR_EOF) {
if (av_buffersink_get_type(filter) == AVMEDIA_TYPE_VIDEO)
enc_frame(ost, NULL);
}
break;
}
if (ost->finished) {
av_frame_unref(filtered_frame);
continue;
}
if (filtered_frame->pts != AV_NOPTS_VALUE) {
AVRational tb = av_buffersink_get_time_base(filter);
ost->filter->last_pts = av_rescale_q(filtered_frame->pts, tb,
AV_TIME_BASE_Q);
filtered_frame->time_base = tb;
if (debug_ts)
av_log(NULL, AV_LOG_INFO, "filter_raw -> pts:%s pts_time:%s time_base:%d/%d\n",
av_ts2str(filtered_frame->pts),
av_ts2timestr(filtered_frame->pts, &tb),
tb.num, tb.den);
}
enc_frame(ost, filtered_frame);
av_frame_unref(filtered_frame);
}
}
return 0;
}
int ifilter_send_eof(InputFilter *ifilter, int64_t pts)
{
int ret;
ifilter->eof = 1;
if (ifilter->filter) {
ret = av_buffersrc_close(ifilter->filter, pts, AV_BUFFERSRC_FLAG_PUSH);
if (ret < 0)
return ret;
} else {
// the filtergraph was never configured
if (ifilter->format < 0) {
ret = ifilter_parameters_from_codecpar(ifilter, ifilter->ist->par);
if (ret < 0)
return ret;
}
if (ifilter->format < 0 && (ifilter->type == AVMEDIA_TYPE_AUDIO || ifilter->type == AVMEDIA_TYPE_VIDEO)) {
av_log(NULL, AV_LOG_ERROR, "Cannot determine format of input stream %d:%d after EOF\n", ifilter->ist->file_index, ifilter->ist->st->index);
return AVERROR_INVALIDDATA;
}
}
return 0;
}
int ifilter_send_frame(InputFilter *ifilter, AVFrame *frame, int keep_reference)
{
FilterGraph *fg = ifilter->graph;
AVFrameSideData *sd;
int need_reinit, ret;
int buffersrc_flags = AV_BUFFERSRC_FLAG_PUSH;
if (keep_reference)
buffersrc_flags |= AV_BUFFERSRC_FLAG_KEEP_REF;
/* determine if the parameters for this input changed */
need_reinit = ifilter->format != frame->format;
switch (ifilter->ist->par->codec_type) {
case AVMEDIA_TYPE_AUDIO:
need_reinit |= ifilter->sample_rate != frame->sample_rate ||
av_channel_layout_compare(&ifilter->ch_layout, &frame->ch_layout);
break;
case AVMEDIA_TYPE_VIDEO:
need_reinit |= ifilter->width != frame->width ||
ifilter->height != frame->height;
break;
}
if (!ifilter->ist->reinit_filters && fg->graph)
need_reinit = 0;
if (!!ifilter->hw_frames_ctx != !!frame->hw_frames_ctx ||
(ifilter->hw_frames_ctx && ifilter->hw_frames_ctx->data != frame->hw_frames_ctx->data))
need_reinit = 1;
if (sd = av_frame_get_side_data(frame, AV_FRAME_DATA_DISPLAYMATRIX)) {
if (!ifilter->displaymatrix || memcmp(sd->data, ifilter->displaymatrix, sizeof(int32_t) * 9))
need_reinit = 1;
} else if (ifilter->displaymatrix)
need_reinit = 1;
if (need_reinit) {
ret = ifilter_parameters_from_frame(ifilter, frame);
if (ret < 0)
return ret;
}
/* (re)init the graph if possible, otherwise buffer the frame and return */
if (need_reinit || !fg->graph) {
if (!ifilter_has_all_input_formats(fg)) {
AVFrame *tmp = av_frame_clone(frame);
if (!tmp)
return AVERROR(ENOMEM);
ret = av_fifo_write(ifilter->frame_queue, &tmp, 1);
if (ret < 0)
av_frame_free(&tmp);
return ret;
}
ret = reap_filters(1);
if (ret < 0 && ret != AVERROR_EOF) {
av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", av_err2str(ret));
return ret;
}
ret = configure_filtergraph(fg);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Error reinitializing filters!\n");
return ret;
}
}
ret = av_buffersrc_add_frame_flags(ifilter->filter, frame, buffersrc_flags);
if (ret < 0) {
if (ret != AVERROR_EOF)
av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", av_err2str(ret));
return ret;
}
return 0;
}
int fg_transcode_step(FilterGraph *graph, InputStream **best_ist)
{
int i, ret;
int nb_requests, nb_requests_max = 0;
InputFilter *ifilter;
InputStream *ist;
*best_ist = NULL;
ret = avfilter_graph_request_oldest(graph->graph);
if (ret >= 0)
return reap_filters(0);
if (ret == AVERROR_EOF) {
ret = reap_filters(1);
for (i = 0; i < graph->nb_outputs; i++)
close_output_stream(graph->outputs[i]->ost);
return ret;
}
if (ret != AVERROR(EAGAIN))
return ret;
for (i = 0; i < graph->nb_inputs; i++) {
ifilter = graph->inputs[i];
ist = ifilter->ist;
if (input_files[ist->file_index]->eagain ||
input_files[ist->file_index]->eof_reached)
continue;
nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
if (nb_requests > nb_requests_max) {
nb_requests_max = nb_requests;
*best_ist = ist;
}
}
if (!*best_ist)
for (i = 0; i < graph->nb_outputs; i++)
graph->outputs[i]->ost->unavailable = 1;
return 0;
}