int main(int argc, char **argv)
{
//curses
int color_pair;
if(initscr() == NULL){
fprintf(stderr, "init failure\n");
exit(EXIT_FAILURE);
}
/* start_colorは色属性を使用するときは最初に必ず実行する.
initscrの直後に実行するのがよい習慣らしい. */
if(has_colors() == FALSE || start_color() == ERR){
endwin();
fprintf(stderr, "This term seems not to having Color\n");
exit(EXIT_FAILURE);
}
if(signal(SIGINT, sig_handler) == SIG_ERR ||
signal(SIGQUIT, sig_handler) == SIG_ERR){
fprintf(stderr, "signal failure\n");
exit(EXIT_FAILURE);
}
curs_set(0);
/* 色のペアを作る */
color_pair = 1;
for(color_pair = 1; color_pair < 256; color_pair++){
init_pair(color_pair, color_pair, color_pair);
}
refresh();
char filter_descr[10000];
int w, h;
w = 80;//COLS;
h = 25;//LINES;
bak = malloc(sizeof (int) * LINES*COLS+1);
sprintf(filter_descr, "scale=%d:%d", w, h);
int ret;
AVPacket packet;
AVFrame frame;
int got_frame;
if (argc != 2) {
fprintf(stderr, "Usage: %s file\n", argv[0]);
exit(1);
}
avcodec_register_all();
av_register_all();
avfilter_register_all();
if ((ret = open_input_file(argv[1])) < 0)
goto end;
if ((ret = init_filters(filter_descr)) < 0)
goto end;
/* read all packets */
while (1) {
AVFilterBufferRef *picref;
if ((ret = av_read_frame(fmt_ctx, &packet)) < 0)
break;
if (packet.stream_index == video_stream_index) {
avcodec_get_frame_defaults(&frame);
got_frame = 0;
ret = avcodec_decode_video2(dec_ctx, &frame, &got_frame, &packet);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Error decoding video\n");
break;
}
if (got_frame) {
frame.pts = av_frame_get_best_effort_timestamp(&frame);
/* push the decoded frame into the filtergraph */
if (av_buffersrc_add_frame(buffersrc_ctx, &frame, 0) < 0) {
av_log(NULL, AV_LOG_ERROR, "Error while feeding the filtergraph\n");
break;
}
/* pull filtered pictures from the filtergraph */
while (repeat_flag) {
ret = av_buffersink_get_buffer_ref(buffersink_ctx, &picref, 0);
if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)
break;
if (ret < 0)
goto end;
if (picref) {
display_picref(picref, buffersink_ctx->inputs[0]->time_base);
avfilter_unref_bufferp(&picref);
}
}
}
}
av_free_packet(&packet);
}
end:
endwin();
avfilter_graph_free(&filter_graph);
if (dec_ctx)
avcodec_close(dec_ctx);
avformat_close_input(&fmt_ctx);
if (ret < 0 && ret != AVERROR_EOF) {
char buf[1024];
av_strerror(ret, buf, sizeof(buf));
fprintf(stderr, "Error occurred: %s\n", buf);
exit(1);
}
exit(0);
}
int main(int argc, char **argv)
{
int ret;
AVPacket packet;
AVFrame *frame = avcodec_alloc_frame();
int got_frame;
if (!frame) {
perror("Could not allocate frame");
exit(1);
}
if (argc != 2) {
fprintf(stderr, "Usage: %s file\n", argv[0]);
exit(1);
}
avcodec_register_all();
av_register_all();
avfilter_register_all();
if ((ret = open_input_file(argv[1])) < 0)
goto end;
if ((ret = init_filters(filter_descr)) < 0)
goto end;
/* read all packets */
while (1) {
AVFilterBufferRef *picref;
if ((ret = av_read_frame(fmt_ctx, &packet)) < 0)
break;
if (packet.stream_index == video_stream_index) {
avcodec_get_frame_defaults(frame);
got_frame = 0;
ret = avcodec_decode_video2(dec_ctx, frame, &got_frame, &packet);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Error decoding video\n");
break;
}
if (got_frame) {
frame->pts = av_frame_get_best_effort_timestamp(frame);
/* push the decoded frame into the filtergraph */
if (av_buffersrc_add_frame(buffersrc_ctx, frame) < 0) {
av_log(NULL, AV_LOG_ERROR, "Error while feeding the filtergraph\n");
break;
}
/* pull filtered pictures from the filtergraph */
while (1) {
ret = av_buffersink_get_buffer_ref(buffersink_ctx, &picref, 0);
if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)
break;
if (ret < 0)
goto end;
if (picref) {
display_picref(picref, buffersink_ctx->inputs[0]->time_base);
avfilter_unref_bufferp(&picref);
}
}
}
}
av_free_packet(&packet);
}
end:
avfilter_graph_free(&filter_graph);
if (dec_ctx)
avcodec_close(dec_ctx);
avformat_close_input(&fmt_ctx);
av_freep(&frame);
if (ret < 0 && ret != AVERROR_EOF) {
char buf[1024];
av_strerror(ret, buf, sizeof(buf));
fprintf(stderr, "Error occurred: %s\n", buf);
exit(1);
}
exit(0);
}
int av_vsink_buffer_get_video_buffer_ref(AVFilterContext *ctx,
AVFilterBufferRef **picref, int flags)
{
return av_buffersink_get_buffer_ref(ctx, picref, flags);
}
/* decode and play stream. returns 0 or av error code.
*/
static int play (player_t * const player) {
assert (player != NULL);
AVPacket pkt;
av_init_packet (&pkt);
pkt.data = NULL;
pkt.size = 0;
AVFrame *frame = NULL, *filteredFrame = NULL;
frame = avcodec_alloc_frame ();
assert (frame != NULL);
filteredFrame = avcodec_alloc_frame ();
assert (filteredFrame != NULL);
while (!player->doQuit) {
ping ();
int ret = av_read_frame (player->fctx, &pkt);
if (ret < 0) {
av_free_packet (&pkt);
return ret;
} else if (pkt.stream_index != player->streamIdx) {
av_free_packet (&pkt);
continue;
}
AVPacket pkt_orig = pkt;
/* pausing */
pthread_mutex_lock (&player->pauseMutex);
while (true) {
if (!player->doPause) {
av_read_play (player->fctx);
break;
} else {
av_read_pause (player->fctx);
}
pthread_cond_wait (&player->pauseCond, &player->pauseMutex);
}
pthread_mutex_unlock (&player->pauseMutex);
do {
int got_frame = 0;
const int decoded = avcodec_decode_audio4 (player->st->codec,
frame, &got_frame, &pkt);
if (decoded < 0) {
/* skip this one */
break;
}
if (got_frame != 0) {
/* XXX: suppresses warning from resample filter */
if (frame->pts == (int64_t) AV_NOPTS_VALUE) {
frame->pts = 0;
}
ret = av_buffersrc_write_frame (player->fabuf, frame);
assert (ret >= 0);
while (true) {
AVFilterBufferRef *audioref = NULL;
#ifdef HAVE_AV_BUFFERSINK_GET_BUFFER_REF
/* ffmpeg’s compatibility layer is broken in some releases */
if (av_buffersink_get_buffer_ref (player->fbufsink,
&audioref, 0) < 0) {
#else
if (av_buffersink_read (player->fbufsink, &audioref) < 0) {
#endif
/* try again next frame */
break;
}
ret = avfilter_copy_buf_props (filteredFrame, audioref);
assert (ret >= 0);
const int numChannels = av_get_channel_layout_nb_channels (
filteredFrame->channel_layout);
const int bps = av_get_bytes_per_sample(filteredFrame->format);
ao_play (player->aoDev, (char *) filteredFrame->data[0],
filteredFrame->nb_samples * numChannels * bps);
avfilter_unref_bufferp (&audioref);
}
}
pkt.data += decoded;
pkt.size -= decoded;
} while (pkt.size > 0);
av_free_packet (&pkt_orig);
player->songPlayed = av_q2d (player->st->time_base) * (double) pkt.pts;
player->lastTimestamp = pkt.pts;
}
avcodec_free_frame (&filteredFrame);
avcodec_free_frame (&frame);
return 0;
}
static void finish (player_t * const player) {
ao_close (player->aoDev);
player->aoDev = NULL;
if (player->fgraph != NULL) {
avfilter_graph_free (&player->fgraph);
player->fgraph = NULL;
}
if (player->st != NULL && player->st->codec != NULL) {
avcodec_close (player->st->codec);
player->st = NULL;
}
if (player->fctx != NULL) {
avformat_close_input (&player->fctx);
}
}
int main(int argc, char **argv)
{
int ret;
AVPacket packet;
AVFrame frame;
int got_frame;
if (argc != 2) {
fprintf(stderr, "Usage: %s file | %s\n", argv[0], player);
exit(1);
}
avcodec_register_all();
av_register_all();
avfilter_register_all();
if ((ret = open_input_file(argv[1])) < 0)
goto end;
if ((ret = init_filters(filter_descr)) < 0)
goto end;
/* read all packets */
while (1) {
AVFilterBufferRef *samplesref;
if ((ret = av_read_frame(fmt_ctx, &packet)) < 0)
break;
if (packet.stream_index == audio_stream_index) {
avcodec_get_frame_defaults(&frame);
got_frame = 0;
ret = avcodec_decode_audio4(dec_ctx, &frame, &got_frame, &packet);
av_free_packet(&packet);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Error decoding audio\n");
continue;
}
if (got_frame) {
/* push the audio data from decoded frame into the filtergraph */
if (av_buffersrc_add_frame(buffersrc_ctx, &frame, 0) < 0) {
av_log(NULL, AV_LOG_ERROR, "Error while feeding the audio filtergraph\n");
break;
}
/* pull filtered audio from the filtergraph */
while (avfilter_poll_frame(buffersink_ctx->inputs[0])) {
av_buffersink_get_buffer_ref(buffersink_ctx, &samplesref, 0);
if (samplesref) {
print_samplesref(samplesref);
avfilter_unref_buffer(samplesref);
}
}
}
}
}
end:
avfilter_graph_free(&filter_graph);
if (dec_ctx)
avcodec_close(dec_ctx);
avformat_close_input(&fmt_ctx);
if (ret < 0 && ret != AVERROR_EOF) {
char buf[1024];
av_strerror(ret, buf, sizeof(buf));
fprintf(stderr, "Error occurred: %s\n", buf);
exit(1);
}
exit(0);
}
int main(int argc, char *argv[])
{
int ret;
AVPacket packet;
AVFrame frame;
int got_frame;
avcodec_register_all();
av_register_all();
avfilter_register_all();
if ((ret = open_input_file("cuc_ieschool.flv")) < 0)
goto end;
if ((ret = init_filters(filter_descr)) < 0)
goto end;
#if ENABLE_YUVFILE
FILE *fp_yuv = fopen("test.yuv", "wb+");
#endif
#if ENABLE_SDL
SDL_Surface *screen;
SDL_Overlay *bmp;
SDL_Rect rect;
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER)) {
printf( "Could not initialize SDL - %s\n", SDL_GetError());
return -1;
}
screen = SDL_SetVideoMode(pCodecCtx->width, pCodecCtx->height, 0, 0);
if (!screen) {
printf("SDL: could not set video mode - exiting\n");
return -1;
}
bmp = SDL_CreateYUVOverlay(pCodecCtx->width, pCodecCtx->height, SDL_YV12_OVERLAY, screen);
SDL_WM_SetCaption("Simplest FFmpeg Video Filter", NULL);
#endif
/* read all packets */
while (1) {
AVFilterBufferRef *picref;
if ((ret = av_read_frame(pFormatCtx, &packet)) < 0)
break;
if (packet.stream_index == video_stream_index) {
avcodec_get_frame_defaults(&frame);
got_frame = 0;
ret = avcodec_decode_video2(pCodecCtx, &frame, &got_frame, &packet);
if (ret < 0) {
printf( "Error decoding video\n");
break;
}
if (got_frame) {
frame.pts = av_frame_get_best_effort_timestamp(&frame);
/* push the decoded frame into the filtergraph */
if (av_buffersrc_add_frame(buffersrc_ctx, &frame) < 0) {
printf( "Error while feeding the filtergraph\n");
break;
}
/* pull filtered pictures from the filtergraph */
while (1) {
ret = av_buffersink_get_buffer_ref(buffersink_ctx, &picref, 0);
if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)
break;
if (ret < 0)
goto end;
if (picref) {
#if ENABLE_YUVFILE
int y_size = picref->video->w * picref->video->h;
fwrite(picref->data[0], 1, y_size, fp_yuv); //Y
fwrite(picref->data[1], 1, y_size / 4, fp_yuv); //U
fwrite(picref->data[2], 1, y_size / 4, fp_yuv); //V
#endif
#if ENABLE_SDL
SDL_LockYUVOverlay(bmp);
int y_size = picref->video->w * picref->video->h;
memcpy(bmp->pixels[0], picref->data[0], y_size); //Y
memcpy(bmp->pixels[2], picref->data[1], y_size / 4); //U
memcpy(bmp->pixels[1], picref->data[2], y_size / 4); //V
bmp->pitches[0] = picref->linesize[0];
bmp->pitches[2] = picref->linesize[1];
bmp->pitches[1] = picref->linesize[2];
SDL_UnlockYUVOverlay(bmp);
rect.x = 0;
rect.y = 0;
rect.w = picref->video->w;
rect.h = picref->video->h;
SDL_DisplayYUVOverlay(bmp, &rect);
//Delay 40ms
SDL_Delay(40);
#endif
avfilter_unref_bufferp(&picref);
}
}
}
}
av_free_packet(&packet);
}
#if ENABLE_YUVFILE
fclose(fp_yuv);
#endif
end:
avfilter_graph_free(&filter_graph);
if (pCodecCtx)
avcodec_close(pCodecCtx);
avformat_close_input(&pFormatCtx);
if (ret < 0 && ret != AVERROR_EOF) {
char buf[1024];
av_strerror(ret, buf, sizeof(buf));
printf("Error occurred: %s\n", buf);
return -1;
}
return 0;
}