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librempeg/tools/uncoded_frame.c
Andreas Rheinhardt a1a1d49355 avutil/common: Don't auto-include mem.h 
There are lots of files that don't need it: The number of object
files that actually need it went down from 2011 to 884 here.

Keep it for external users in order to not cause breakages.

Also improve the other headers a bit while just at it.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2024-04-01 19:51:37 +02:00

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "libavutil/avassert.h"
#include "libavutil/mem.h"
#include "libavdevice/avdevice.h"
#include "libavfilter/avfilter.h"
#include "libavfilter/buffersink.h"
#include "libavformat/avformat.h"
#include "libavcodec/codec_id.h"
typedef struct {
AVFormatContext *mux;
AVStream *stream;
AVFilterContext *sink;
} Stream;
static int create_sink(Stream *st, AVFilterGraph *graph,
AVFilterContext *f, int idx)
{
enum AVMediaType type = avfilter_pad_get_type(f->output_pads, idx);
const char *sink_name;
int ret;
switch (type) {
case AVMEDIA_TYPE_VIDEO: sink_name = "buffersink"; break;
case AVMEDIA_TYPE_AUDIO: sink_name = "abuffersink"; break;
default:
av_log(NULL, AV_LOG_ERROR, "Stream type not supported\n");
return AVERROR(EINVAL);
}
ret = avfilter_graph_create_filter(&st->sink,
avfilter_get_by_name(sink_name),
NULL, NULL, NULL, graph);
if (ret < 0)
return ret;
ret = avfilter_link(f, idx, st->sink, 0);
if (ret < 0)
return ret;
return 0;
}
int main(int argc, char **argv)
{
char *in_graph_desc, **out_dev_name;
int nb_out_dev = 0, nb_streams = 0;
AVFilterGraph *in_graph = NULL;
Stream *streams = NULL, *st;
AVFrame *frame = NULL;
int i, j, run = 1, ret;
//av_log_set_level(AV_LOG_DEBUG);
if (argc < 3) {
av_log(NULL, AV_LOG_ERROR,
"Usage: %s filter_graph dev:out [dev2:out2...]\n\n"
"Examples:\n"
"%s movie=file.nut:s=v+a xv:- alsa:default\n"
"%s movie=file.nut:s=v+a uncodedframecrc:pipe:0\n",
argv[0], argv[0], argv[0]);
exit(1);
}
in_graph_desc = argv[1];
out_dev_name = argv + 2;
nb_out_dev = argc - 2;
avdevice_register_all();
/* Create input graph */
if (!(in_graph = avfilter_graph_alloc())) {
ret = AVERROR(ENOMEM);
av_log(NULL, AV_LOG_ERROR, "Unable to alloc graph graph: %s\n",
av_err2str(ret));
goto fail;
}
ret = avfilter_graph_parse_ptr(in_graph, in_graph_desc, NULL, NULL, NULL);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Unable to parse graph: %s\n",
av_err2str(ret));
goto fail;
}
nb_streams = 0;
for (i = 0; i < in_graph->nb_filters; i++) {
AVFilterContext *f = in_graph->filters[i];
for (j = 0; j < f->nb_inputs; j++) {
if (!f->inputs[j]) {
av_log(NULL, AV_LOG_ERROR, "Graph has unconnected inputs\n");
ret = AVERROR(EINVAL);
goto fail;
}
}
for (j = 0; j < f->nb_outputs; j++)
if (!f->outputs[j])
nb_streams++;
}
if (!nb_streams) {
av_log(NULL, AV_LOG_ERROR, "Graph has no output stream\n");
ret = AVERROR(EINVAL);
goto fail;
}
if (nb_out_dev != 1 && nb_out_dev != nb_streams) {
av_log(NULL, AV_LOG_ERROR,
"Graph has %d output streams, %d devices given\n",
nb_streams, nb_out_dev);
ret = AVERROR(EINVAL);
goto fail;
}
if (!(streams = av_calloc(nb_streams, sizeof(*streams)))) {
ret = AVERROR(ENOMEM);
av_log(NULL, AV_LOG_ERROR, "Could not allocate streams\n");
}
st = streams;
for (i = 0; i < in_graph->nb_filters; i++) {
AVFilterContext *f = in_graph->filters[i];
for (j = 0; j < f->nb_outputs; j++) {
if (!f->outputs[j]) {
if ((ret = create_sink(st++, in_graph, f, j)) < 0)
goto fail;
}
}
}
av_assert0(st - streams == nb_streams);
if ((ret = avfilter_graph_config(in_graph, NULL)) < 0) {
av_log(NULL, AV_LOG_ERROR, "Failed to configure graph\n");
goto fail;
}
/* Create output devices */
for (i = 0; i < nb_out_dev; i++) {
char *fmt = NULL, *dev = out_dev_name[i];
st = &streams[i];
if ((dev = strchr(dev, ':'))) {
*(dev++) = 0;
fmt = out_dev_name[i];
}
ret = avformat_alloc_output_context2(&st->mux, NULL, fmt, dev);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Failed to allocate output: %s\n",
av_err2str(ret));
goto fail;
}
if (!(st->mux->oformat->flags & AVFMT_NOFILE)) {
ret = avio_open2(&st->mux->pb, st->mux->url, AVIO_FLAG_WRITE,
NULL, NULL);
if (ret < 0) {
av_log(st->mux, AV_LOG_ERROR, "Failed to init output: %s\n",
av_err2str(ret));
goto fail;
}
}
}
for (; i < nb_streams; i++)
streams[i].mux = streams[0].mux;
/* Create output device streams */
for (i = 0; i < nb_streams; i++) {
st = &streams[i];
if (!(st->stream = avformat_new_stream(st->mux, NULL))) {
ret = AVERROR(ENOMEM);
av_log(NULL, AV_LOG_ERROR, "Failed to create output stream\n");
goto fail;
}
st->stream->codecpar->codec_type = av_buffersink_get_type(st->sink);
st->stream->time_base = av_buffersink_get_time_base(st->sink);
switch (av_buffersink_get_type(st->sink)) {
case AVMEDIA_TYPE_VIDEO:
st->stream->codecpar->codec_id = AV_CODEC_ID_RAWVIDEO;
st->stream->avg_frame_rate =
st->stream-> r_frame_rate = av_buffersink_get_frame_rate(st->sink);
st->stream->codecpar->width = av_buffersink_get_w(st->sink);
st->stream->codecpar->height = av_buffersink_get_h(st->sink);
st->stream->codecpar->sample_aspect_ratio = av_buffersink_get_sample_aspect_ratio(st->sink);
st->stream->codecpar->format = av_buffersink_get_format(st->sink);
break;
case AVMEDIA_TYPE_AUDIO:
ret = av_buffersink_get_ch_layout(st->sink, &st->stream->codecpar->ch_layout);
if (ret < 0)
goto fail;
st->stream->codecpar->sample_rate = av_buffersink_get_sample_rate(st->sink);
st->stream->codecpar->format = av_buffersink_get_format(st->sink);
st->stream->codecpar->codec_id = av_get_pcm_codec(st->stream->codecpar->format, -1);
break;
default:
av_assert0(!"reached");
}
}
/* Init output devices */
for (i = 0; i < nb_out_dev; i++) {
st = &streams[i];
if ((ret = avformat_write_header(st->mux, NULL)) < 0) {
av_log(st->mux, AV_LOG_ERROR, "Failed to init output: %s\n",
av_err2str(ret));
goto fail;
}
}
/* Check output devices */
for (i = 0; i < nb_streams; i++) {
st = &streams[i];
ret = av_write_uncoded_frame_query(st->mux, st->stream->index);
if (ret < 0) {
av_log(st->mux, AV_LOG_ERROR,
"Uncoded frames not supported on stream #%d: %s\n",
i, av_err2str(ret));
goto fail;
}
}
while (run) {
ret = avfilter_graph_request_oldest(in_graph);
if (ret < 0) {
if (ret == AVERROR_EOF) {
run = 0;
} else {
av_log(NULL, AV_LOG_ERROR, "Error filtering: %s\n",
av_err2str(ret));
break;
}
}
for (i = 0; i < nb_streams; i++) {
st = &streams[i];
while (1) {
if (!frame && !(frame = av_frame_alloc())) {
ret = AVERROR(ENOMEM);
av_log(NULL, AV_LOG_ERROR, "Could not allocate frame\n");
goto fail;
}
ret = av_buffersink_get_frame_flags(st->sink, frame,
AV_BUFFERSINK_FLAG_NO_REQUEST);
if (ret < 0) {
if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF)
av_log(NULL, AV_LOG_WARNING, "Error in sink: %s\n",
av_err2str(ret));
break;
}
if (frame->pts != AV_NOPTS_VALUE)
frame->pts = av_rescale_q(frame->pts,
av_buffersink_get_time_base(st->sink),
st->stream->time_base);
ret = av_interleaved_write_uncoded_frame(st->mux,
st->stream->index,
frame);
frame = NULL;
if (ret < 0) {
av_log(st->mux, AV_LOG_ERROR,
"Error writing frame: %s\n", av_err2str(ret));
goto fail;
}
}
}
}
ret = 0;
for (i = 0; i < nb_out_dev; i++) {
st = &streams[i];
av_write_trailer(st->mux);
}
fail:
av_frame_free(&frame);
avfilter_graph_free(&in_graph);
if (streams) {
for (i = 0; i < nb_out_dev; i++) {
st = &streams[i];
if (st->mux) {
if (st->mux->pb)
avio_closep(&st->mux->pb);
avformat_free_context(st->mux);
}
}
}
av_freep(&streams);
return ret < 0;
}
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