void ffmpeglib_close(ffmpeglib_t *lib)
{
free_avformat(lib);
free_avcodec(lib);
free_avutil(lib);
#ifdef HAVE_FFMPEG_SWSCALE
free_swscale(lib);
#endif
}
void ffmpeglib_close(ffmpeglib_t *lib)
{
free_avformat(lib);
free_avcodec(lib);
free_avutil(lib);
free_swscale(lib);
#ifndef HAVE_FFMPEG_AVRESAMPLE
free_swresample(lib);
#else
free_avresample(lib);
#endif
}
int ffmpeglib_open(ffmpeglib_t *lib)
{
int result;
result = load_avformat(lib);
if (result != 0) {
free_avformat(lib);
return result;
}
result = load_avcodec(lib);
if (result != 0) {
free_avformat(lib);
free_avcodec(lib);
return result;
}
result = load_avutil(lib);
if (result != 0) {
free_avformat(lib);
free_avcodec(lib);
free_avutil(lib);
return result;
}
result = load_swscale(lib);
if (result != 0) {
free_avformat(lib);
free_avcodec(lib);
free_avutil(lib);
free_swscale(lib);
return result;
}
#ifndef HAVE_FFMPEG_AVRESAMPLE
result = load_swresample(lib);
if (result != 0) {
free_avformat(lib);
free_avcodec(lib);
free_avutil(lib);
free_swscale(lib);
free_swresample(lib);
return result;
}
#else
result = load_avresample(lib);
if (result != 0) {
free_avformat(lib);
free_avcodec(lib);
free_avutil(lib);
free_swscale(lib);
free_avresample(lib);
return result;
}
#endif
return 0;
}
int ffmpeglib_open(ffmpeglib_t *lib)
{
int result;
result = load_avformat(lib);
if (result != 0) {
free_avformat(lib);
return result;
}
result = load_avcodec(lib);
if (result != 0) {
free_avformat(lib);
free_avcodec(lib);
return result;
}
result = load_avutil(lib);
if (result != 0) {
free_avformat(lib);
free_avcodec(lib);
free_avutil(lib);
return result;
}
#ifdef HAVE_FFMPEG_SWSCALE
result = load_swscale(lib);
if (result != 0) {
free_avformat(lib);
free_avcodec(lib);
free_avutil(lib);
free_swscale(lib);
return result;
}
#endif
return 0;
}
static int ffmpeg_mux_init_context(struct ffmpeg_mux *ffm)
{
AVOutputFormat *output_format;
int ret;
output_format = av_guess_format(NULL, ffm->params.file, NULL);
if (output_format == NULL) {
printf("Couldn't find an appropriate muxer for '%s'\n",
ffm->params.file);
return FFM_ERROR;
}
ret = avformat_alloc_output_context2(&ffm->output, output_format,
NULL, NULL);
if (ret < 0) {
printf("Couldn't initialize output context: %s\n",
av_err2str(ret));
return FFM_ERROR;
}
ffm->output->oformat->video_codec = AV_CODEC_ID_NONE;
ffm->output->oformat->audio_codec = AV_CODEC_ID_NONE;
if (!init_streams(ffm)) {
free_avformat(ffm);
return FFM_ERROR;
}
ret = open_output_file(ffm);
if (ret != FFM_SUCCESS) {
free_avformat(ffm);
return ret;
}
return FFM_SUCCESS;
}
static void ffmpeg_mux_free(struct ffmpeg_mux *ffm)
{
if (ffm->initialized) {
av_write_trailer(ffm->output);
}
free_avformat(ffm);
header_free(&ffm->video_header);
if (ffm->audio_header) {
for (int i = 0; i < ffm->params.tracks; i++) {
header_free(&ffm->audio_header[i]);
}
free(ffm->audio_header);
}
if (ffm->audio) {
free(ffm->audio);
}
memset(ffm, 0, sizeof(*ffm));
}
