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Open input/output separately, and read/write separately

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This is a refactor of the library API so that we will be able to have
multiple outputs.
This commit is contained in:
Will Storey
2017-01-01 14:58:29 -08:00
parent 1ae87a3c72
commit 37325f57b0
4 changed files with 255 additions and 140 deletions
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46
cmd/remux_example/remux_example.c
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@@ -21,10 +21,18 @@ int main(const int argc, const char * const * const argv)
const char * const output_url = "file:/tmp/out.mp4";
const bool verbose = true;
struct Videostreamer * const vs = vs_open(input_format, input_url,
output_format, output_url, verbose);
if (!vs) {
printf("unable to open videostreamer\n");
struct VSInput * const input = vs_open_input(input_format, input_url,
verbose);
if (!input) {
printf("unable to open input\n");
return 1;
}
struct VSOutput * const output = vs_open_output(output_format, output_url,
input, verbose);
if (!output) {
printf("unable to open output\n");
vs_destroy_input(input);
return 1;
}
@@ -32,14 +40,31 @@ int main(const int argc, const char * const * const argv)
int i = 0;
while (1) {
const int frame_size = vs_read_write(vs, verbose);
if (frame_size == -1) {
printf("read/write failed\n");
vs_destroy(vs);
AVPacket pkt;
memset(&pkt, 0, sizeof(AVPacket));
const int read_res = vs_read_packet(input, &pkt, verbose);
if (read_res == -1) {
printf("read failed\n");
vs_destroy_input(input);
vs_destroy_output(output);
return 1;
}
printf("frame size %d\n", frame_size);
if (read_res == 0) {
continue;
}
const int write_res = vs_write_packet(input, output, &pkt, verbose);
if (write_res == -1) {
printf("write failed\n");
vs_destroy_input(input);
vs_destroy_output(output);
av_packet_unref(&pkt);
return 1;
}
av_packet_unref(&pkt);
i++;
if (i == max_frames) {
@@ -47,7 +72,8 @@ int main(const int argc, const char * const * const argv)
}
}
vs_destroy(vs);
vs_destroy_input(input);
vs_destroy_output(output);
return 0;
}