/* prepare audio output */
if (enc->codec_type == CODEC_TYPE_AUDIO) {
- wanted_spec.freq = enc->sample_rate;
- wanted_spec.format = AUDIO_S16SYS;
- if(enc->channels > 2) {
- wanted_spec.channels = 2;
- enc->request_channels = 2;
+ if (enc->channels > 0) {
+ enc->request_channels = FFMIN(2, enc->channels);
} else {
- wanted_spec.channels = enc->channels;
- }
- wanted_spec.silence = 0;
- wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
- wanted_spec.callback = sdl_audio_callback;
- wanted_spec.userdata = is;
- if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
- fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
- return -1;
+ enc->request_channels = 2;
}
- is->audio_hw_buf_size = spec.size;
}
codec = avcodec_find_decoder(enc->codec_id);
if (!codec ||
avcodec_open(enc, codec) < 0)
return -1;
+
+ /* prepare audio output */
+ if (enc->codec_type == CODEC_TYPE_AUDIO) {
+ wanted_spec.freq = enc->sample_rate;
+ wanted_spec.format = AUDIO_S16SYS;
+ wanted_spec.channels = enc->channels;
+ wanted_spec.silence = 0;
+ wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
+ wanted_spec.callback = sdl_audio_callback;
+ wanted_spec.userdata = is;
+ if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
+ fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
+ return -1;
+ }
+ is->audio_hw_buf_size = spec.size;
+ }
+
if(thread_count>1)
avcodec_thread_init(enc, thread_count);
enc->thread_count= thread_count;
frame_pix_fmt = avcodec_get_pix_fmt(arg);
}
-#ifdef CONFIG_RTSP_DEMUXER
-static void opt_rtp_tcp(void)
-{
- /* only tcp protocol */
- rtsp_default_protocols = (1 << RTSP_PROTOCOL_RTP_TCP);
-}
-#endif
-
static void opt_sync(const char *arg)
{
if (!strcmp(arg, "audio"))
{ "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
{ "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_resilience}, "set error detection threshold (0-4)", "threshold" },
{ "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
-#ifdef CONFIG_RTSP_DEMUXER
- { "rtp_tcp", OPT_EXPERT, {(void*)&opt_rtp_tcp}, "force RTP/TCP protocol usage", "" },
-#endif
{ "sync", HAS_ARG | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
{ "threads", HAS_ARG | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
{ NULL, },