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Sur d’autres sites (10839)
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The C++11 Thread Timer is not working
26 août 2017, par GathrosI’m trying to make a video player using SDL2 and FFmpeg API. The video is being decoded and I can display an image on screen. I can also play audio but I not doing that (I know it works, I’ve tried it).
My problem is I can’t update the image when it should be. I’m able to get the timestamps and work out the delay then send it to a thread, where it should call an window update when the time has elapsed. But all that happens is the images flash on the screen with no delay. I have even set the delay to 1 second and the images still flash, after there being 1 second of a blank window.
Here is my code :
extern "C"{
//FFmpeg libraries
#include <libavcodec></libavcodec>avcodec.h>
#include <libavformat></libavformat>avformat.h>
#include <libswscale></libswscale>swscale.h>
//SDL2 libraries
#include <sdl2></sdl2>SDL.h>
}
// compatibility with newer API
#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(55,28,1)
#define av_frame_alloc avcodec_alloc_frame
#define av_frame_free avcodec_free_frame
#endif
//C++ libraries
#include <cstdio>
#include <chrono>
#include <thread>
#include <atomic>
#include <mutex>
#include
typedef struct PacketQueue {
AVPacketList *first_pkt, *last_pkt;
std::mutex mutex;
std::condition_variable convar;
} PacketQueue;
std::atomic<bool> quitting, decoded;
std::atomic delay;
Uint32 Update_Window;
int packet_queue_put(PacketQueue *q, AVPacket *pkt){
AVPacketList *pkt1;
if(av_dup_packet(pkt) < 0){
return -1;
}
pkt1 = (AVPacketList*) av_malloc(sizeof(AVPacketList));
if(!pkt1){
return -1;
}
pkt1->pkt = *pkt;
pkt1->next = NULL;
std::lock_guard lock(q->mutex);
if (!q->last_pkt){
q->first_pkt = pkt1;
}else{
q->last_pkt->next = pkt1;
}
q->last_pkt = pkt1;
q->convar.notify_all();
return 0;
}
static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block){
AVPacketList *pkt1;
int ret;
std::unique_lock lk(q->mutex);
while(1){
if(quitting){
ret = -1;
break;
}
pkt1 = q->first_pkt;
if(pkt1){
q->first_pkt = pkt1->next;
if(!q->first_pkt){
q->last_pkt = NULL;
}
*pkt = pkt1->pkt;
av_free(pkt1);
ret = 1;
break;
}else if(decoded){
ret = 0;
quitting = true;
break;
}else if(block){
q->convar.wait_for(lk, std::chrono::microseconds(50));
}else {
ret = 0;
break;
}
}
return ret;
}
void UpdateEventQueue(){
SDL_Event event;
SDL_zero(event);
event.type = Update_Window;
SDL_PushEvent(&event);
}
void VideoTimerThreadFunc(){
UpdateEventQueue();
while(!quitting){
if(delay == 0){
std::this_thread::sleep_for(std::chrono::milliseconds(1));
}else {
std::this_thread::sleep_for(std::chrono::microseconds(delay));
UpdateEventQueue();
}
}
}
int main(int argc, char *argv[]){
AVFormatContext* FormatCtx = nullptr;
AVCodecContext* CodecCtxOrig = nullptr;
AVCodecContext* CodecCtx = nullptr;
AVCodec* Codec = nullptr;
int videoStream;
AVFrame* Frame = nullptr;
AVPacket packet;
struct SwsContext* SwsCtx = nullptr;
PacketQueue videoq;
int frameFinished;
int64_t last_pts = 0;
const AVRational ms = {1, 1000};
SDL_Event event;
SDL_Window* screen;
SDL_Renderer* renderer;
SDL_Texture* texture;
std::shared_ptr<uint8> yPlane, uPlane, vPlane;
int uvPitch;
if (argc != 2) {
fprintf(stderr, "Usage: %s <file>\n", argv[0]);
return -1;
}
// Register all formats and codecs
av_register_all();
// Initialise SDL2
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER)) {
fprintf(stderr, "Couldn't initialise SDL - %s\n", SDL_GetError());
return -1;
}
// Setting things up
quitting = false;
decoded = false;
delay = 0;
Update_Window = SDL_RegisterEvents(1);
memset(&videoq, 0, sizeof(PacketQueue));
// Open video file
if(avformat_open_input(&FormatCtx, argv[1], NULL, NULL) != 0){
fprintf(stderr, "Couldn't open file\n");
return -1; // Couldn't open file
}
// Retrieve stream information
if(avformat_find_stream_info(FormatCtx, NULL) < 0){
fprintf(stderr, "Couldn't find stream information\n");
// Close the video file
avformat_close_input(&FormatCtx);
return -1; // Couldn't find stream information
}
// Find the video stream
videoStream = av_find_best_stream(FormatCtx, AVMEDIA_TYPE_VIDEO, -1, -1, NULL, 0);
if(videoStream < 0){
fprintf(stderr, "Couldn't find video stream\n");
// Close the video file
avformat_close_input(&FormatCtx);
return -1; // Didn't find a video stream
}
// Get a pointer to the codec context for the video stream
CodecCtxOrig = FormatCtx->streams[videoStream]->codec;
// Find the decoder for the video stream
Codec = avcodec_find_decoder(CodecCtxOrig->codec_id);
if(Codec == NULL){
fprintf(stderr, "Unsupported codec\n");
// Close the codec
avcodec_close(CodecCtxOrig);
// Close the video file
avformat_close_input(&FormatCtx);
return -1; // Codec not found
}
// Copy context
CodecCtx = avcodec_alloc_context3(Codec);
if(avcodec_copy_context(CodecCtx, CodecCtxOrig) != 0){
fprintf(stderr, "Couldn't copy codec context");
// Close the codec
avcodec_close(CodecCtxOrig);
// Close the video file
avformat_close_input(&FormatCtx);
return -1; // Error copying codec context
}
// Open codec
if(avcodec_open2(CodecCtx, Codec, NULL) < 0){
fprintf(stderr, "Couldn't open codec\n");
// Close the codec
avcodec_close(CodecCtx);
avcodec_close(CodecCtxOrig);
// Close the video file
avformat_close_input(&FormatCtx);
return -1; // Could not open codec
}
// Allocate video frame
Frame = av_frame_alloc();
// Make a screen to put our video
screen = SDL_CreateWindow("Video Player", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, CodecCtx->width, CodecCtx->height, 0);
if(!screen){
fprintf(stderr, "SDL: could not create window - exiting\n");
quitting = true;
// Clean up SDL2
SDL_Quit();
// Free the YUV frame
av_frame_free(&Frame);
// Close the codec
avcodec_close(CodecCtx);
avcodec_close(CodecCtxOrig);
// Close the video file
avformat_close_input(&FormatCtx);
return -1;
}
renderer = SDL_CreateRenderer(screen, -1, 0);
if(!renderer){
fprintf(stderr, "SDL: could not create renderer - exiting\n");
quitting = true;
// Clean up SDL2
SDL_DestroyWindow(screen);
SDL_Quit();
// Free the YUV frame
av_frame_free(&Frame);
// Close the codec
avcodec_close(CodecCtx);
avcodec_close(CodecCtxOrig);
// Close the video file
avformat_close_input(&FormatCtx);
return -1;
}
// Allocate a place to put our YUV image on that screen
texture = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_YV12, SDL_TEXTUREACCESS_STREAMING, CodecCtx->width, CodecCtx->height);
if(!texture){
fprintf(stderr, "SDL: could not create texture - exiting\n");
quitting = true;
// Clean up SDL2
SDL_DestroyRenderer(renderer);
SDL_DestroyWindow(screen);
SDL_Quit();
// Free the YUV frame
av_frame_free(&Frame);
// Close the codec
avcodec_close(CodecCtx);
avcodec_close(CodecCtxOrig);
// Close the video file
avformat_close_input(&FormatCtx);
return -1;
}
// Initialise SWS context for software scaling
SwsCtx = sws_getContext(CodecCtx->width, CodecCtx->height, CodecCtx->pix_fmt,
CodecCtx->width, CodecCtx->height, PIX_FMT_YUV420P, SWS_BILINEAR, NULL, NULL, NULL);
if(!SwsCtx){
fprintf(stderr, "Couldn't create sws context\n");
quitting = true;
// Clean up SDL2
SDL_DestroyTexture(texture);
SDL_DestroyRenderer(renderer);
SDL_DestroyWindow(screen);
SDL_Quit();
// Free the YUV frame
av_frame_free(&Frame);
// Close the codec
avcodec_close(CodecCtx);
avcodec_close(CodecCtxOrig);
// Close the video file
avformat_close_input(&FormatCtx);
return -1;
}
// set up YV12 pixel array (12 bits per pixel)
yPlane = std::shared_ptr<uint8>((Uint8 *)::operator new (CodecCtx->width * CodecCtx->height, std::nothrow));
uPlane = std::shared_ptr<uint8>((Uint8 *)::operator new (CodecCtx->width * CodecCtx->height / 4, std::nothrow));
vPlane = std::shared_ptr<uint8>((Uint8 *)::operator new (CodecCtx->width * CodecCtx->height / 4, std::nothrow));
uvPitch = CodecCtx->width / 2;
if (!yPlane || !uPlane || !vPlane) {
fprintf(stderr, "Could not allocate pixel buffers - exiting\n");
quitting = true;
// Clean up SDL2
SDL_DestroyTexture(texture);
SDL_DestroyRenderer(renderer);
SDL_DestroyWindow(screen);
SDL_Quit();
// Free the YUV frame
av_frame_free(&Frame);
// Close the codec
avcodec_close(CodecCtx);
avcodec_close(CodecCtxOrig);
// Close the video file
avformat_close_input(&FormatCtx);
return -1;
}
std::thread VideoTimer (VideoTimerThreadFunc);
while (!quitting) {
// Check for more packets
if(av_read_frame(FormatCtx, &packet) >= 0){
// Check what stream it belongs to
if (packet.stream_index == videoStream) {
packet_queue_put(&videoq, &packet);
}else{
// Free the packet that was allocated by av_read_frame
av_free_packet(&packet);
}
}else {
decoded = true;
}
SDL_PollEvent(&event);
if(event.type == Update_Window){
// Getting packet
if(packet_queue_get(&videoq, &packet, 0)){
// Decode video frame
avcodec_decode_video2(CodecCtx, Frame, &frameFinished, &packet);
// Did we get a video frame?
if (frameFinished) {
AVPicture pict;
pict.data[0] = yPlane.get();
pict.data[1] = uPlane.get();
pict.data[2] = vPlane.get();
pict.linesize[0] = CodecCtx->width;
pict.linesize[1] = uvPitch;
pict.linesize[2] = uvPitch;
// Convert the image into YUV format that SDL uses
sws_scale(SwsCtx, (uint8_t const * const *) Frame->data, Frame->linesize, 0, CodecCtx->height, pict.data, pict.linesize);
SDL_UpdateYUVTexture(texture, NULL, yPlane.get(), CodecCtx->width, uPlane.get(), uvPitch, vPlane.get(), uvPitch);
SDL_RenderClear(renderer);
SDL_RenderCopy(renderer, texture, NULL, NULL);
SDL_RenderPresent(renderer);
// Calculating delay
delay = av_rescale_q(packet.dts, CodecCtx->time_base, ms) - last_pts;
last_pts = av_rescale_q(packet.dts, CodecCtx->time_base, ms);
}else{
//UpdateEventQueue();
delay = 1;
}
// Free the packet that was allocated by av_read_frame
av_free_packet(&packet);
}else{
//UpdateEventQueue();
}
}
switch (event.type) {
case SDL_QUIT:
quitting = true;
break;
default:
break;
}
}
VideoTimer.join();
//SDL2 clean up
SDL_DestroyTexture(texture);
SDL_DestroyRenderer(renderer);
SDL_DestroyWindow(screen);
SDL_Quit();
// Free the YUV frame
av_frame_free(&Frame);
// Free Sws
sws_freeContext(SwsCtx);
// Close the codec
avcodec_close(CodecCtx);
avcodec_close(CodecCtxOrig);
// Close the video file
avformat_close_input(&FormatCtx);
return 0;
}
</uint8></uint8></uint8></file></uint8></bool></mutex></atomic></thread></chrono></cstdio> -
ffmpeg - splitting, overlaying and selecting frame range in multiple input/outputs with complex video filter producing empty output
11 octobre 2017, par Josep CarnerI am trying to use ffmpeg to apply multiple filters -single input, multiple outputs-. In concrete, I am splitting the output in two, then applying an overlaying patch to one of those streams, split again and select a time range. The command I am using is :
ffmpeg \
-i ./dataset_test/videos/jz_10_huron_barstow.mkv \
-an \
-sn \
-loglevel error \
-filter_complex \
"[0:v]split=2[L_in][F_in];
[L_in]
crop=226:307:21:74,scale=200x200,setdar=200:200,split=2\
[L_in_0][L_in_1];\
color=#808080:226x307,setpts=PTS-STARTPTS[L_PATCH];\
[F_in][L_PATCH]
overlay=21:74:shortest=1,scale=200x200,setdar=200:200,split=2\
[F_in_0][F_in_1];\
[F_in_0]select='between(t\,32\,212)',select='not(mod(n\,20))',setpts=(PTS-STARTPTS)/20[F_0];\
[F_in_1]select='between(t\,213\,393)',select='not(mod(n\,20))',setpts=(PTS-STARTPTS)/20[F_1];\
[L_in_0]select='between(t\,32\,212)',select='not(mod(n\,20))',setpts=(PTS-STARTPTS)/20[L_0];\
[L_in_1]select='between(t\,213\,393)',select='not(mod(n\,20))',setpts=(PTS-STARTPTS)/20[L_1]\
"\
-map [F_0] -an -sn ./out/jz_10_huron_barstow/F/0_F.mp4\
-map [F_1] -an -sn ./out/jz_10_huron_barstow/F/1_F.mp4\
-map [L_0] -an -sn ./out/jz_10_huron_barstow/L/0_L.mp4\
-map [L_1] -an -sn ./out/jz_10_huron_barstow/L/1_L.mp4\For some reason, 0_F.mp4 is empty and 1_F.mp4 is cropped. My intuition is that it has something to do with applying splitting + overlaying + selecting. I think at some point some filter before select is changing the PTS of the frames in some way select is not properly discarding them, but I honestly don’t know how to solve it. Some insights :
-
L_0 and L_1 are fine (no overlay is used in those two)
-
If I suppress L outputs everything works fine (no "split" is needed at the beginning)
Could someone provide some light ? I don’t really know what else to try.
The logs with loglevel 40 are (some repeated lines ommited) :ffmpeg version 2.8.1 Copyright (c) 2000-2015 the FFmpeg developers
built with Apple LLVM version 9.0.0 (clang-900.0.37)
configuration: --prefix=/usr/local/Cellar/ffmpeg/2.8.1_1 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-opencl --enable-libx264 --enable-libmp3lame --enable-libvo-aacenc --enable-libxvid --enable-vda
libavutil 54. 31.100 / 54. 31.100
libavcodec 56. 60.100 / 56. 60.100
libavformat 56. 40.101 / 56. 40.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 40.101 / 5. 40.101
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 2.101 / 1. 2.101
libpostproc 53. 3.100 / 53. 3.100
Input #0, matroska,webm, from './dataset_test/videos/jz_10_huron_barstow.mkv':
Metadata:
ENCODER : Lavf57.66.104
Duration: 00:24:04.14, start: 0.000000, bitrate: 2117 kb/s
Stream #0:0: Video: h264 (Main), 1 reference frame, yuv420p, 1440x900 (1440x912) [SAR 1:1 DAR 8:5], 30 fps, 30 tbr, 1k tbn, 60 tbc (default)
Metadata:
ENCODER : Lavc57.83.100 h264_nvenc
DURATION : 00:24:04.102000000
Stream #0:1: Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s (default)
Metadata:
ENCODER : Lavc57.83.100 ac3
DURATION : 00:24:04.135000000
[Parsed_scale_2 @ 0x7fdfd2403d20] w:200 h:200 flags:'bilinear' interl:0
[Parsed_setdar_3 @ 0x7fdfd240ad80] num:den syntax is deprecated, please use num/den or named options instead
[Parsed_color_5 @ 0x7fdfd24096a0] size:226x307 rate:25/1 duration:-1.000000 sar:1/1
[Parsed_scale_8 @ 0x7fdfd24092c0] w:200 h:200 flags:'bilinear' interl:0
[Parsed_setdar_9 @ 0x7fdfd240b360] num:den syntax is deprecated, please use num/den or named options instead
[Parsed_scale_2 @ 0x7fdfd2509b00] w:200 h:200 flags:'bilinear' interl:0
[Parsed_setdar_3 @ 0x7fdfd25092c0] num:den syntax is deprecated, please use num/den or named options instead
[Parsed_color_5 @ 0x7fdfd250a520] size:226x307 rate:25/1 duration:-1.000000 sar:1/1
[Parsed_scale_8 @ 0x7fdfd250b620] w:200 h:200 flags:'bilinear' interl:0
[Parsed_setdar_9 @ 0x7fdfd250a960] num:den syntax is deprecated, please use num/den or named options instead
[graph 0 input from stream 0:0 @ 0x7fdfd2511360] w:1440 h:900 pixfmt:yuv420p tb:1/1000 fr:30/1 sar:1/1 sws_param:flags=2
[Parsed_crop_1 @ 0x7fdfd2509c80] w:1440 h:900 sar:1/1 -> w:226 h:306 sar:1/1
[Parsed_scale_2 @ 0x7fdfd2509b00] w:226 h:306 fmt:yuv420p sar:1/1 -> w:200 h:200 fmt:yuv420p sar:113/153 flags:0x2
[Parsed_setdar_3 @ 0x7fdfd25092c0] w:200 h:200 dar:113/153 sar:113/153 -> dar:1/1 sar:1/1
[Parsed_select_21 @ 0x7fdfd250a760] TB:0.001000 FRAME_RATE:30.000000 SAMPLE_RATE:nan
[Parsed_select_18 @ 0x7fdfd250a080] TB:0.001000 FRAME_RATE:30.000000 SAMPLE_RATE:nan
[Parsed_color_5 @ 0x7fdfd250a520] TB:0.040000 FRAME_RATE:25.000000 SAMPLE_RATE:nan
[Parsed_overlay_7 @ 0x7fdfd250b020] main w:1440 h:900 fmt:yuv420p overlay w:226 h:306 fmt:yuva420p eof_action:endall
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Selected 1/1000 time base
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Sync level 2
[Parsed_scale_8 @ 0x7fdfd250b620] w:1440 h:900 fmt:yuv420p sar:1/1 -> w:200 h:200 fmt:yuv420p sar:8/5 flags:0x2
[Parsed_setdar_9 @ 0x7fdfd250a960] w:200 h:200 dar:8/5 sar:8/5 -> dar:1/1 sar:1/1
[Parsed_select_15 @ 0x7fdfd250dd00] TB:0.001000 FRAME_RATE:30.000000 SAMPLE_RATE:nan
[Parsed_select_12 @ 0x7fdfd250ca60] TB:0.001000 FRAME_RATE:30.000000 SAMPLE_RATE:nan
[libx264 @ 0x7fdfd4005e00] using SAR=1/1
[libx264 @ 0x7fdfd4005e00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
[libx264 @ 0x7fdfd4005e00] profile High, level 1.2
[libx264 @ 0x7fdfd4005e00] 264 - core 148 r2601 a0cd7d3 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
[libx264 @ 0x7fdfd400f600] using SAR=1/1
[libx264 @ 0x7fdfd400f600] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
[libx264 @ 0x7fdfd400f600] profile High, level 1.2
[libx264 @ 0x7fdfd400f600] 264 - core 148 r2601 a0cd7d3 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
[libx264 @ 0x7fdfd4018e00] using SAR=1/1
[libx264 @ 0x7fdfd4018e00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
[libx264 @ 0x7fdfd4018e00] profile High, level 1.2
[libx264 @ 0x7fdfd4018e00] 264 - core 148 r2601 a0cd7d3 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
[libx264 @ 0x7fdfd4022600] using SAR=1/1
[libx264 @ 0x7fdfd4022600] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
[libx264 @ 0x7fdfd4022600] profile High, level 1.2
[libx264 @ 0x7fdfd4022600] 264 - core 148 r2601 a0cd7d3 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to './out/jz_10_huron_barstow/F/0_F.mp4':
Metadata:
encoder : Lavf56.40.101
Stream #0:0: Video: h264 (libx264), -1 reference frame ([33][0][0][0] / 0x0021), yuv420p, 200x200 [SAR 1:1 DAR 1:1], q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
Metadata:
encoder : Lavc56.60.100 libx264
Output #1, mp4, to './out/jz_10_huron_barstow/F/1_F.mp4':
Metadata:
encoder : Lavf56.40.101
Stream #1:0: Video: h264 (libx264), -1 reference frame ([33][0][0][0] / 0x0021), yuv420p, 200x200 [SAR 1:1 DAR 1:1], q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
Metadata:
encoder : Lavc56.60.100 libx264
Output #2, mp4, to './out/jz_10_huron_barstow/L/0_L.mp4':
Metadata:
encoder : Lavf56.40.101
Stream #2:0: Video: h264 (libx264), -1 reference frame ([33][0][0][0] / 0x0021), yuv420p, 200x200 [SAR 1:1 DAR 1:1], q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
Metadata:
encoder : Lavc56.60.100 libx264
Output #3, mp4, to './out/jz_10_huron_barstow/L/1_L.mp4':
Metadata:
encoder : Lavf56.40.101
Stream #3:0: Video: h264 (libx264), -1 reference frame ([33][0][0][0] / 0x0021), yuv420p, 200x200 [SAR 1:1 DAR 1:1], q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
Metadata:
encoder : Lavc56.60.100 libx264
Stream mapping:
Stream #0:0 (h264) -> split
setpts -> Stream #0:0 (libx264)
setpts -> Stream #1:0 (libx264)
setpts -> Stream #2:0 (libx264)
setpts -> Stream #3:0 (libx264)
Press [q] to stop, [?] for help
[swscaler @ 0x7fdfd3800000] Warning: data is not aligned! This can lead to a speedloss
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Buffer queue overflow, dropping.
Last message repeated 210 times
frame= 0 fps=0.0 q=0.0 q=0.0 q=0.0 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Buffer queue overflow, dropping.
Last message repeated 262 times
frame= 0 fps=0.0 q=0.0 q=0.0 q=0.0 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Buffer queue overflow, dropping.
Last message repeated 239 times
frame= 0 fps=0.0 q=0.0 q=0.0 q=0.0 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Buffer queue overflow, dropping.
Last message repeated 195 times
frame= 0 fps=0.0 q=0.0 q=0.0 q=0.0 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Buffer queue overflow, dropping.
Last message repeated 211 times
frame= 0 fps=0.0 q=0.0 q=0.0 q=0.0 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Buffer queue overflow, dropping.
Last message repeated 255 times
frame= 0 fps=0.0 q=0.0 q=0.0 q=0.0 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Buffer queue overflow, dropping.
Last message repeated 148 times
frame= 0 fps=0.0 q=0.0 q=0.0 q=0.0 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Buffer queue overflow, dropping.
Last message repeated 174 times
frame= 0 fps=0.0 q=0.0 q=0.0 q=0.0 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Buffer queue overflow, dropping.
Last message repeated 182 times
frame= 0 fps=0.0 q=0.0 q=0.0 q=0.0 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Buffer queue overflow, dropping.
Last message repeated 193 times
frame= 0 fps=0.0 q=0.0 q=0.0 q=29.0 q=0.0 size= 0kB time=00:00:00.26 bitrate= 1.4kbits/s
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Buffer queue overflow, dropping.
Last message repeated 156 times
frame= 0 fps=0.0 q=0.0 q=0.0 q=29.0 q=0.0 size= 0kB time=00:00:00.53 bitrate= 0.7kbits/s
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Buffer queue overflow, dropping.
Last message repeated 154 times
frame= 0 fps=0.0 q=0.0 q=0.0 q=29.0 q=0.0 size= 0kB time=00:00:00.76 bitrate= 0.5kbits/s
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Buffer queue overflow, dropping.
Last message repeated 155 times
frame= 0 fps=0.0 q=0.0 q=0.0 q=29.0 q=0.0 size= 0kB time=00:00:01.03 bitrate= 0.4kbits/s
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Buffer queue overflow, dropping.
Last message repeated 231 times
frame= 0 fps=0.0 q=0.0 q=0.0 q=29.0 q=0.0 size= 0kB time=00:00:01.43 bitrate= 0.3kbits/s
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Buffer queue overflow, dropping.
Last message repeated 260 times
frame= 0 fps=0.0 q=0.0 q=0.0 q=29.0 q=0.0 size= 0kB time=00:00:01.86 bitrate= 0.2kbits/s
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Buffer queue overflow, dropping.
Last message repeated 256 times
frame= 0 fps=0.0 q=0.0 q=0.0 q=29.0 q=0.0 size= 0kB time=00:00:02.30 bitrate= 0.2kbits/s
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Buffer queue overflow, dropping.
Last message repeated 209 times
frame= 0 fps=0.0 q=0.0 q=0.0 q=29.0 q=0.0 size= 0kB time=00:00:02.63 bitrate= 0.1kbits/s
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Buffer queue overflow, dropping.
Last message repeated 253 times
frame= 0 fps=0.0 q=0.0 q=0.0 q=29.0 q=0.0 size= 0kB time=00:00:03.06 bitrate= 0.1kbits/s
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Buffer queue overflow, dropping.
Last message repeated 160 times
frame= 0 fps=0.0 q=0.0 q=0.0 q=29.0 q=0.0 size= 0kB time=00:00:03.33 bitrate= 0.1kbits/s
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Buffer queue overflow, dropping.
Last message repeated 189 times
frame= 0 fps=0.0 q=0.0 q=0.0 q=29.0 q=0.0 size= 0kB time=00:00:03.63 bitrate= 0.1kbits/s
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Buffer queue overflow, dropping.
Last message repeated 201 times
frame= 0 fps=0.0 q=0.0 q=0.0 q=29.0 q=0.0 size= 0kB time=00:00:03.96 bitrate= 0.1kbits/s
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Buffer queue overflow, dropping.
Last message repeated 251 times
frame= 0 fps=0.0 q=0.0 q=0.0 q=29.0 q=0.0 size= 0kB time=00:00:04.40 bitrate= 0.1kbits/s
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Buffer queue overflow, dropping.
Last message repeated 246 times
frame= 0 fps=0.0 q=0.0 q=0.0 q=29.0 q=0.0 size= 0kB time=00:00:04.80 bitrate= 0.1kbits/s
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Buffer queue overflow, dropping.
Last message repeated 257 times
frame= 0 fps=0.0 q=0.0 q=0.0 q=29.0 q=0.0 size= 0kB time=00:00:05.23 bitrate= 0.1kbits/s
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Buffer queue overflow, dropping.
Last message repeated 258 times
frame= 0 fps=0.0 q=0.0 q=0.0 q=29.0 q=0.0 size= 0kB time=00:00:05.66 bitrate= 0.1kbits/s
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Buffer queue overflow, dropping.
Last message repeated 251 times
frame= 0 fps=0.0 q=0.0 q=0.0 q=29.0 q=0.0 size= 0kB time=00:00:06.10 bitrate= 0.1kbits/s
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Buffer queue overflow, dropping.
Last message repeated 274 times
frame= 0 fps=0.0 q=0.0 q=0.0 q=29.0 q=0.0 size= 0kB time=00:00:06.56 bitrate= 0.1kbits/s
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Buffer queue overflow, dropping.
Last message repeated 282 times
frame= 0 fps=0.0 q=0.0 q=0.0 q=29.0 q=0.0 size= 0kB time=00:00:07.03 bitrate= 0.1kbits/s
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Buffer queue overflow, dropping.
Last message repeated 185 times
frame= 0 fps=0.0 q=0.0 q=0.0 q=29.0 q=0.0 size= 0kB time=00:00:07.26 bitrate= 0.1kbits/s
frame= 0 fps=0.0 q=0.0 q=0.0 q=29.0 q=0.0 size= 0kB time=00:00:07.26 bitrate= 0.1kbits/s
frame= 0 fps=0.0 q=0.0 q=0.0 q=29.0 q=0.0 size= 0kB time=00:00:07.26 bitrate= 0.1kbits/s
frame= 0 fps=0.0 q=0.0 q=0.0 q=29.0 q=0.0 size= 0kB time=00:00:07.26 bitrate= 0.1kbits/s
frame= 0 fps=0.0 q=0.0 q=0.0 q=29.0 q=0.0 size= 0kB time=00:00:07.26 bitrate= 0.1kbits/s
frame= 0 fps=0.0 q=0.0 q=0.0 q=29.0 q=0.0 size= 0kB time=00:00:07.26 bitrate= 0.1kbits/s
frame= 0 fps=0.0 q=0.0 q=29.0 q=29.0 q=29.0 size= 0kB time=00:00:07.26 bitrate= 0.1kbits/s
frame= 0 fps=0.0 q=0.0 q=29.0 q=29.0 q=29.0 size= 0kB time=00:00:07.26 bitrate= 0.1kbits/s
frame= 0 fps=0.0 q=0.0 q=29.0 q=29.0 q=29.0 size= 0kB time=00:00:07.26 bitrate= 0.1kbits/s
frame= 0 fps=0.0 q=0.0 q=29.0 q=29.0 q=29.0 size= 0kB time=00:00:07.26 bitrate= 0.1kbits/s
frame= 0 fps=0.0 q=0.0 q=29.0 q=29.0 q=29.0 size= 0kB time=00:00:07.26 bitrate= 0.1kbits/s
[…]
frame= 0 fps=0.0 q=0.0 q=29.0 q=29.0 q=29.0 size= 0kB time=00:00:07.26 bitrate= 0.1kbits/s
[Parsed_overlay_7 @ 0x7fdfd250b020] [framesync @ 0x7fdfd250b708] Sync level 1
No more output streams to write to, finishing.
frame= 0 fps=0.0 q=0.0 Lq=-1.0 q=-1.0 q=-1.0 size= 0kB time=00:00:08.93 bitrate= 0.2kbits/s
video:620kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
Input file #0 (./dataset_test/videos/jz_10_huron_barstow.mkv):
Input stream #0:0 (video): 43323 packets read (347030822 bytes); 43323 frames decoded;
Input stream #0:1 (audio): 4 packets read (3072 bytes);
Total: 43327 packets (347033894 bytes) demuxed
Output file #0 (./out/jz_10_huron_barstow/F/0_F.mp4):
Output stream #0:0 (video): 0 frames encoded; 0 packets muxed (0 bytes);
Total: 0 packets (0 bytes) muxed
Output file #1 (./out/jz_10_huron_barstow/F/1_F.mp4):
Output stream #1:0 (video): 270 frames encoded; 270 packets muxed (309743 bytes);
Total: 270 packets (309743 bytes) muxed
Output file #2 (./out/jz_10_huron_barstow/L/0_L.mp4):
Output stream #2:0 (video): 270 frames encoded; 270 packets muxed (169687 bytes);
Total: 270 packets (169687 bytes) muxed
Output file #3 (./out/jz_10_huron_barstow/L/1_L.mp4):
Output stream #3:0 (video): 270 frames encoded; 270 packets muxed (155502 bytes);
Total: 270 packets (155502 bytes) muxed
[libx264 @ 0x7fdfd400f600] frame I:2 Avg QP:25.08 size: 3204
[libx264 @ 0x7fdfd400f600] frame P:140 Avg QP:26.63 size: 1426
[libx264 @ 0x7fdfd400f600] frame B:128 Avg QP:28.64 size: 805
[libx264 @ 0x7fdfd400f600] consecutive B-frames: 5.2% 94.8% 0.0% 0.0%
[libx264 @ 0x7fdfd400f600] mb I I16..4: 8.6% 62.7% 28.7%
[libx264 @ 0x7fdfd400f600] mb P I16..4: 2.5% 12.5% 3.4% P16..4: 39.2% 21.4% 9.3% 0.0% 0.0% skip:11.6%
[libx264 @ 0x7fdfd400f600] mb B I16..4: 0.5% 4.0% 1.0% B16..8: 36.5% 16.7% 4.0% direct: 5.5% skip:31.8% L0:43.4% L1:46.9% BI: 9.7%
[libx264 @ 0x7fdfd400f600] 8x8 transform intra:68.6% inter:67.7%
[libx264 @ 0x7fdfd400f600] coded y,uvDC,uvAC intra: 63.1% 48.6% 17.9% inter: 34.5% 21.1% 3.6%
[libx264 @ 0x7fdfd400f600] i16 v,h,dc,p: 24% 23% 12% 41%
[libx264 @ 0x7fdfd400f600] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 17% 19% 26% 7% 5% 5% 7% 6% 8%
[libx264 @ 0x7fdfd400f600] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 22% 29% 18% 6% 6% 5% 5% 4% 5%
[libx264 @ 0x7fdfd400f600] i8c dc,h,v,p: 63% 21% 14% 3%
[libx264 @ 0x7fdfd400f600] Weighted P-Frames: Y:14.3% UV:1.4%
[libx264 @ 0x7fdfd400f600] ref P L0: 49.2% 20.4% 17.3% 11.2% 1.9%
[libx264 @ 0x7fdfd400f600] ref B L0: 75.4% 24.6%
[libx264 @ 0x7fdfd400f600] kb/s:274.71
[libx264 @ 0x7fdfd4018e00] frame I:2 Avg QP:23.87 size: 2294
[libx264 @ 0x7fdfd4018e00] frame P:133 Avg QP:25.45 size: 864
[libx264 @ 0x7fdfd4018e00] frame B:135 Avg QP:28.99 size: 367
[libx264 @ 0x7fdfd4018e00] consecutive B-frames: 17.4% 38.5% 27.8% 16.3%
[libx264 @ 0x7fdfd4018e00] mb I I16..4: 14.5% 54.1% 31.4%
[libx264 @ 0x7fdfd4018e00] mb P I16..4: 6.4% 9.6% 2.1% P16..4: 33.3% 16.7% 5.9% 0.0% 0.0% skip:26.0%
[libx264 @ 0x7fdfd4018e00] mb B I16..4: 1.6% 2.0% 0.3% B16..8: 29.6% 9.3% 1.4% direct: 2.2% skip:53.6% L0:41.9% L1:51.4% BI: 6.7%
[libx264 @ 0x7fdfd4018e00] 8x8 transform intra:52.8% inter:73.8%
[libx264 @ 0x7fdfd4018e00] coded y,uvDC,uvAC intra: 40.7% 41.7% 8.9% inter: 20.7% 16.6% 0.2%
[libx264 @ 0x7fdfd4018e00] i16 v,h,dc,p: 22% 50% 8% 21%
[libx264 @ 0x7fdfd4018e00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 18% 30% 23% 6% 2% 2% 5% 5% 9%
[libx264 @ 0x7fdfd4018e00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 29% 29% 14% 5% 3% 4% 5% 6% 5%
[libx264 @ 0x7fdfd4018e00] i8c dc,h,v,p: 62% 23% 12% 3%
[libx264 @ 0x7fdfd4018e00] Weighted P-Frames: Y:1.5% UV:0.8%
[libx264 @ 0x7fdfd4018e00] ref P L0: 56.1% 15.8% 17.7% 10.2% 0.1%
[libx264 @ 0x7fdfd4018e00] ref B L0: 75.4% 20.8% 3.9%
[libx264 @ 0x7fdfd4018e00] ref B L1: 92.6% 7.4%
[libx264 @ 0x7fdfd4018e00] kb/s:150.22
[libx264 @ 0x7fdfd4022600] frame I:2 Avg QP:23.86 size: 2208
[libx264 @ 0x7fdfd4022600] frame P:139 Avg QP:24.90 size: 784
[libx264 @ 0x7fdfd4022600] frame B:129 Avg QP:28.25 size: 322
[libx264 @ 0x7fdfd4022600] consecutive B-frames: 17.8% 50.4% 15.6% 16.3%
[libx264 @ 0x7fdfd4022600] mb I I16..4: 15.7% 53.3% 31.1%
[libx264 @ 0x7fdfd4022600] mb P I16..4: 8.3% 9.9% 1.5% P16..4: 33.8% 14.8% 5.0% 0.0% 0.0% skip:26.7%
[libx264 @ 0x7fdfd4022600] mb B I16..4: 1.6% 1.8% 0.1% B16..8: 28.8% 8.2% 1.1% direct: 2.1% skip:56.4% L0:45.5% L1:47.6% BI: 6.9%
[libx264 @ 0x7fdfd4022600] 8x8 transform intra:50.6% inter:75.8%
[libx264 @ 0x7fdfd4022600] coded y,uvDC,uvAC intra: 34.0% 44.3% 10.0% inter: 18.8% 17.9% 0.4%
[libx264 @ 0x7fdfd4022600] i16 v,h,dc,p: 18% 54% 8% 20%
[libx264 @ 0x7fdfd4022600] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 19% 28% 26% 6% 2% 2% 4% 5% 8%
[libx264 @ 0x7fdfd4022600] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 32% 31% 14% 4% 2% 2% 3% 7% 5%
[libx264 @ 0x7fdfd4022600] i8c dc,h,v,p: 60% 25% 13% 2%
[libx264 @ 0x7fdfd4022600] Weighted P-Frames: Y:2.2% UV:0.7%
[libx264 @ 0x7fdfd4022600] ref P L0: 57.9% 16.8% 16.1% 8.9% 0.2%
[libx264 @ 0x7fdfd4022600] ref B L0: 76.5% 21.0% 2.5%
[libx264 @ 0x7fdfd4022600] ref B L1: 95.0% 5.0%
[libx264 @ 0x7fdfd4022600] kb/s:137.61 -
-
How to get the video duration using FFMPEG in C# asp.net
23 août 2013, par HamadI want to get the video file duration in string using C#. I searched the internet and all i get is :
ffmpeg -i inputfile.aviAnd every1 say that parse the output for duration.
Here is my code which is
string filargs = "-y -i " + inputavi + " -ar 22050 " + outputflv;
Process proc;
proc = new Process();
proc.StartInfo.FileName = spath;
proc.StartInfo.Arguments = filargs;
proc.StartInfo.UseShellExecute = false;
proc.StartInfo.CreateNoWindow = false;
proc.StartInfo.RedirectStandardOutput = false;
try
{
proc.Start();
}
catch (Exception ex)
{
Response.Write(ex.Message);
}
try
{
proc.WaitForExit(50 * 1000);
}
catch (Exception ex)
{ }
finally
{
proc.Close();
}Now please tell me how can i save the output string and parse it for the video duration.
Thanks and regards,
Syndiquer tout le site
