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| 1 | #include <stdio.h> | |
| 2 | #include <stdlib.h> | |
| 3 | #include <string.h> | |
| 4 | #include <libavformat/avformat.h> | |
| 5 | ||
| 6 | AVOutputFormat *get_yuv4mpeg_format() {
| |
| 7 | AVOutputFormat *format = NULL; | |
| 8 | while((format = av_oformat_next(format))) {
| |
| 9 | if(strcmp(format->name, "yuv4mpegpipe") == 0) {
| |
| 10 | return format; | |
| 11 | } | |
| 12 | } | |
| 13 | return NULL; | |
| 14 | } | |
| 15 | ||
| 16 | int main(int argc, char *argv[]) {
| |
| 17 | av_register_all(); | |
| 18 | char *filename = "test.y4m"; | |
| 19 | ||
| 20 | AVFormatContext *fc = avformat_alloc_context(); | |
| 21 | fc->oformat = get_yuv4mpeg_format(); | |
| 22 | if(!fc->oformat) {
| |
| 23 | fprintf(stderr, "Could not find yuv4mpeg\n"); | |
| 24 | exit(1); | |
| 25 | } | |
| 26 | snprintf(fc->filename, sizeof(fc->filename), "%s", filename); | |
| 27 | ||
| 28 | AVCodecContext *c; | |
| 29 | AVStream *st; | |
| 30 | if (fc->oformat->video_codec != CODEC_ID_NONE) {
| |
| 31 | st = avformat_new_stream(fc, 0); | |
| 32 | c = st->codec; | |
| 33 | c->codec_id = fc->oformat->video_codec; | |
| 34 | c->codec_type = AVMEDIA_TYPE_VIDEO; | |
| 35 | c->pix_fmt = PIX_FMT_YUV420P; | |
| 36 | c->width = 352; | |
| 37 | c->height = 288; | |
| 38 | } | |
| 39 | ||
| 40 | ||
| 41 | if (!(fc->oformat->flags & AVFMT_NOFILE)) {
| |
| 42 | if (avio_open(&fc->pb, filename, URL_WRONLY) < 0) {
| |
| 43 | fprintf(stderr, "Could not open '%s'\n", filename); | |
| 44 | exit(1); | |
| 45 | } | |
| 46 | } | |
| 47 | ||
| 48 | fc->oformat->write_header(fc); | |
| 49 | ||
| 50 | return 0; | |
| 51 | - | } |
| 51 | + | |
| 52 | ||
| 53 | #if 0 | |
| 54 | Backtrace: | |
| 55 | #0 0x00007ffff7b9c185 in ?? () from /usr/lib/x86_64-linux-gnu/libavformat.so.53 | |
| 56 | #1 0x0000000000400ac6 in main (argc=1, argv=0x7fffffffe0e8) at test.c:48 | |
| 57 | #endif |
