I'm now trying to use gmerlin/encoder.h but am having some trouble.
I do------------------------:
int astream, vstream;
bg_cfg_registry_t* config_reg;
bg_plugin_registry_t* plugin_reg;
char * tmp_path;
bg_cfg_section_t * section;
gavl_video_format_t vformat;
gavl_audio_format_t aformat;
bg_encoder_t * encoder;
config_reg = bg_cfg_registry_create();
tmp_path = bg_search_file_read("generic", "config.xml");
bg_cfg_registry_load(config_reg, tmp_path);
// How do I know what to load or look for here?
section = bg_cfg_registry_find_section(config_reg, "plugins");
plugin_reg = bg_plugin_registry_create(section);
// I then create the encoder but don't know why I pass it plugin_reg or
// section. What's the deal here?
encoder = bg_encoder_create( plugin_reg, section, NULL, 0, 0);
// open it up
if ( bg_encoder_open( encoder, "testvideo", NULL, NULL)) {
// I then set up my aformat and vformat
aformat.samples_per_frame = 256;
aformat.samplerate = 48000;
aformat.num_channels =2;
aformat.sample_format = GAVL_SAMPLE_FLOAT ;
aformat.interleave_mode= GAVL_INTERLEAVE_NONE;
aformat.channel_locations[0] = GAVL_CHID_FRONT_LEFT;
aformat.channel_locations[1] = GAVL_CHID_FRONT_RIGHT ;
vformat.frame_width = 360;
vformat.frame_height = 240;
vformat.image_width = 360;
vformat.image_height = 240;
vformat.pixel_width = 1;
vformat.pixel_height = 1;
vformat.pixelformat = GAVL_RGB_24;
vformat.frame_duration = 1001;
vformat.timescale = 30000;
vformat.framerate_mode = GAVL_FRAMERATE_CONSTANT;
vformat.chroma_placement = GAVL_CHROMA_PLACEMENT_DEFAULT;
vformat.interlace_mode=GAVL_INTERLACE_NONE;
vformat.timecode_format.int_framerate=30;
// then I add an audio stream, this seems to work
printf("got here\n");
astream = bg_encoder_add_audio_stream(encoder, NULL,
&aformat, 0);
printf("added astream %d\n", astream);
// !!!!!!!!!!!!!!!!!!!!!!!!!!
// IT CRASHES HERE BELOW. WHY?
vstream = bg_encoder_add_video_stream(encoder, &vformat, 1);
printf("added vstream %d\n", vstream);
// Assuming I can get past this, what do I do next?
// do I need to check the formats to see if they are the
// same as what I passed to the encoder?
bg_encoder_get_audio_format(encoder, astream, &checkaformat);
bg_encoder_get_video_format(encoder, vstream, &checkvformat);
// I assume I then start the encoder
bg_encoder_start(encoder);
// create frames and set up a while loop
// to generate content for the audio-video frames
// and then write them
//int bg_encoder_write_audio_frame(bg_encoder_t *, gavl_audio_frame_t *
frame, int stream);
//int bg_encoder_write_video_frame(bg_encoder_t *, gavl_video_frame_t *
frame, int stream);
// What am I missing?
}
// destroy what I created
bg_plugin_registry_destroy (plugin_reg);
bg_cfg_registry_destroy( config_reg );
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