#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#define STREAM_DURATION 10.0
#define STREAM_FRAME_RATE 25
#define STREAM_PIX_FMT AV_PIX_FMT_YUV420P
#define SCALE_FLAGS SWS_BICUBIC
{
printf("pts:%s pts_time:%s dts:%s dts_time:%s duration:%s duration_time:%s stream_index:%d\n",
}
{
}
{
int i;
if (!(*codec)) {
fprintf(stderr, "Could not find encoder for '%s'\n",
exit(1);
}
fprintf(stderr, "Could not allocate stream\n");
exit(1);
}
switch ((*codec)->type) {
if ((*codec)->supported_samplerates) {
for (i = 0; (*codec)->supported_samplerates[i]; i++) {
if ((*codec)->supported_samplerates[i] == 44100)
}
}
if ((*codec)->channel_layouts) {
for (i = 0; (*codec)->channel_layouts[i]; i++) {
}
}
break;
}
}
break;
default:
break;
}
}
uint64_t channel_layout,
{
if (!frame) {
fprintf(stderr, "Error allocating an audio frame\n");
exit(1);
}
if (nb_samples) {
if (ret < 0) {
fprintf(stderr, "Error allocating an audio buffer\n");
exit(1);
}
}
}
{
int nb_samples;
if (ret < 0) {
fprintf(stderr,
"Could not open audio codec: %s\n",
av_err2str(ret));
exit(1);
}
nb_samples = 10000;
else
fprintf(stderr, "Could not allocate resampler context\n");
exit(1);
}
fprintf(stderr, "Failed to initialize the resampling context\n");
exit(1);
}
}
{
int16_t *q = (int16_t*)frame->
data[0];
return NULL;
v = (int)(sin(ost->
t) * 10000);
*q++ = v;
}
}
{
int got_packet;
int dst_nb_samples;
if (frame) {
if (ret < 0)
exit(1);
if (ret < 0) {
fprintf(stderr, "Error while converting\n");
exit(1);
}
}
if (ret < 0) {
fprintf(stderr,
"Error encoding audio frame: %s\n",
av_err2str(ret));
exit(1);
}
if (got_packet) {
if (ret < 0) {
fprintf(stderr, "Error while writing audio frame: %s\n",
exit(1);
}
}
return (frame || got_packet) ? 0 : 1;
}
{
if (!picture)
return NULL;
if (ret < 0) {
fprintf(stderr, "Could not allocate frame data.\n");
exit(1);
}
return picture;
}
{
if (ret < 0) {
fprintf(stderr,
"Could not open video codec: %s\n",
av_err2str(ret));
exit(1);
}
fprintf(stderr, "Could not allocate video frame\n");
exit(1);
}
fprintf(stderr, "Could not allocate temporary picture\n");
exit(1);
}
}
}
int width, int height)
{
if (ret < 0)
exit(1);
i = frame_index;
for (x = 0; x <
width; x++)
for (y = 0; y < height / 2; y++) {
for (x = 0; x < width / 2; x++) {
}
}
}
{
return NULL;
fprintf(stderr,
"Could not initialize the conversion context\n");
exit(1);
}
}
} else {
}
}
{
int got_packet = 0;
if (!frame)
return 1;
} else {
if (ret < 0) {
fprintf(stderr,
"Error encoding video frame: %s\n",
av_err2str(ret));
exit(1);
}
if (got_packet) {
} else {
ret = 0;
}
}
if (ret < 0) {
fprintf(stderr,
"Error while writing video frame: %s\n",
av_err2str(ret));
exit(1);
}
return (frame || got_packet) ? 0 : 1;
}
{
}
int main(
int argc,
char **argv)
{
const char *filename;
AVCodec *audio_codec, *video_codec;
int have_video = 0, have_audio = 0;
int encode_video = 0, encode_audio = 0;
if (argc < 2) {
printf("usage: %s output_file\n"
"API example program to output a media file with libavformat.\n"
"This program generates a synthetic audio and video stream, encodes and\n"
"muxes them into a file named output_file.\n"
"The output format is automatically guessed according to the file extension.\n"
"Raw images can also be output by using '%%d' in the filename.\n"
"\n", argv[0]);
return 1;
}
filename = argv[1];
if (argc > 3 && !strcmp(argv[2], "-flags")) {
}
if (!oc) {
printf("Could not deduce output format from file extension: using MPEG.\n");
}
if (!oc)
return 1;
have_video = 1;
encode_video = 1;
}
have_audio = 1;
encode_audio = 1;
}
if (have_video)
if (have_audio)
if (ret < 0) {
fprintf(stderr, "Could not open '%s': %s\n", filename,
return 1;
}
}
if (ret < 0) {
fprintf(stderr, "Error occurred when opening output file: %s\n",
return 1;
}
while (encode_video || encode_audio) {
if (encode_video &&
audio_st.next_pts, audio_st.st->codec->time_base) <= 0)) {
} else {
}
}
if (have_video)
if (have_audio)
return 0;
}