ffmpeg_mediametadataretriever.c

int set_data_source_fd(State **ps, int fd, int64_t offset, int64_t length) {
    char path[256] = "";

	State *state = *ps;
	
	ANativeWindow *native_window = NULL;

	if (state && state->native_window) {
		native_window = state->native_window;
	}

	init(&state);

	state->native_window = native_window;
    	
    int myfd = dup(fd);

    char str[20];
    sprintf(str, "pipe:%d", myfd);
    strcat(path, str);
    
    state->fd = myfd;
    state->offset = offset;
    
	*ps = state;
    
    return set_data_source_l(ps, path);
}

int set_data_source_l(State **ps, const char* path) {
	printf("set_data_source\n");
	int audio_index = -1;
	int video_index = -1;
	int i;

	State *state = *ps;
	
    printf("Path: %s\n", path);

    AVDictionary *options = NULL;
    av_dict_set(&options, "icy", "1", 0);
    av_dict_set(&options, "user-agent", "FFmpegMediaMetadataRetriever", 0);
    
    if (state->headers) {
        av_dict_set(&options, "headers", state->headers, 0);
    }
    
    if (state->offset > 0) {
        state->pFormatCtx = avformat_alloc_context();
        state->pFormatCtx->skip_initial_bytes = state->offset;
    }
    
    if (avformat_open_input(&state->pFormatCtx, path, NULL, &options) != 0) {
	    printf("Metadata could not be retrieved\n");
		*ps = NULL;
    	return FAILURE;
    }

	if (avformat_find_stream_info(state->pFormatCtx, NULL) < 0) {
	    printf("Metadata could not be retrieved\n");
	    avformat_close_input(&state->pFormatCtx);
		*ps = NULL;
    	return FAILURE;
	}

	set_duration(state->pFormatCtx);
	
	set_shoutcast_metadata(state->pFormatCtx);

	//av_dump_format(state->pFormatCtx, 0, path, 0);
	
    // Find the first audio and video stream
	for (i = 0; i < state->pFormatCtx->nb_streams; i++) {
		if (state->pFormatCtx->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO && video_index < 0) {
			video_index = i;
		}

		if (state->pFormatCtx->streams[i]->codec->codec_type == AVMEDIA_TYPE_AUDIO && audio_index < 0) {
			audio_index = i;
		}

		set_codec(state->pFormatCtx, i);
	}

	if (audio_index >= 0) {
		stream_component_open(state, audio_index);
	}

	if (video_index >= 0) {
		stream_component_open(state, video_index);
	}

	/*if(state->video_stream < 0 || state->audio_stream < 0) {
	    avformat_close_input(&state->pFormatCtx);
		*ps = NULL;
		return FAILURE;
	}*/

    set_rotation(state->pFormatCtx, state->audio_st, state->video_st);
    set_framerate(state->pFormatCtx, state->audio_st, state->video_st);
    set_filesize(state->pFormatCtx);
    set_chapter_count(state->pFormatCtx);
    set_video_dimensions(state->pFormatCtx, state->video_st);
    
	/*printf("Found metadata\n");
	AVDictionaryEntry *tag = NULL;
	while ((tag = av_dict_get(state->pFormatCtx->metadata, "", tag, AV_DICT_IGNORE_SUFFIX))) {
    	printf("Key %s: \n", tag->key);
    	printf("Value %s: \n", tag->value);
    }*/
	
	*ps = state;
	return SUCCESS;
}