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Stereo master soundtrack
17 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Audio
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ED-ME-5 1-DVD
11 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Audio
-
1,000,000
27 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
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Demon Seed
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
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The Four of Us are Dying
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
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Corona Radiata
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
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Sur d’autres sites (10724)
-
How to use ffmpeg api to make a filter overlay water mark ?
6 septembre 2022, par Leon LeeOS : Ubuntu 20.04


FFmpeg : 4.4.0


Test video :


Input #0, hevc, from './videos/akiyo_352x288p25.265' :
Duration : N/A, bitrate : N/A
Stream #0:0 : Video : hevc (Main), yuv420p(tv), 352x288, 25 fps, 25 tbr, 1200k tbn, 25 tbc


Test watermark :


200*200.png


I copy ffmpeg official example.


Compiler no error, run no error , but i can't see add watermark


Here is my code


#include <libavcodec></libavcodec>avcodec.h>
#include <libavformat></libavformat>avformat.h>
#include <libavutil></libavutil>opt.h>
#include <libavfilter></libavfilter>buffersink.h>
#include <libavfilter></libavfilter>buffersrc.h>
int open_input_file(AVFormatContext *fmt, AVCodecContext **codecctx, AVCodec *codec, const char *filename, int index)
{
 int ret = 0;
 char msg[500];
 *codecctx = avcodec_alloc_context3(codec);
 ret = avcodec_parameters_to_context(*codecctx, fmt->streams[index]->codecpar);
 if (ret < 0)
 {
 printf("avcodec_parameters_to_context error,ret:%d\n", ret);
 
 return -1;
 }

 // open 解码器
 ret = avcodec_open2(*codecctx, codec, NULL);
 if (ret < 0)
 {
 printf("avcodec_open2 error,ret:%d\n", ret);
 
 return -2;
 }
 printf("pix:%d\n", (*codecctx)->pix_fmt);
 return ret;
}

int init_filter(AVFilterContext **buffersrc_ctx, AVFilterContext **buffersink_ctx, AVFilterGraph **filter_graph, AVStream *stream, AVCodecContext *codecctx, const char *filter_desc)
{
 int ret = -1;
 char args[512];
 char msg[500];
 const AVFilter *buffersrc = avfilter_get_by_name("buffer");
 const AVFilter *buffersink = avfilter_get_by_name("buffersink");

 AVFilterInOut *input = avfilter_inout_alloc();
 AVFilterInOut *output = avfilter_inout_alloc();

 AVRational time_base = stream->time_base;
 enum AVPixelFormat pix_fmts[] = {AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE};

 if (!output || !input || !filter_graph)
 {
 ret = -1;
 printf("avfilter_graph_alloc/avfilter_inout_alloc error,ret:%d\n", ret);
 
 goto end;
 }
 snprintf(args, sizeof(args), "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d", codecctx->width, codecctx->height, codecctx->pix_fmt, stream->time_base.num, stream->time_base.den, codecctx->sample_aspect_ratio.num, codecctx->sample_aspect_ratio.den);
 ret = avfilter_graph_create_filter(buffersrc_ctx, buffersrc, "in", args, NULL, *filter_graph);
 if (ret < 0)
 {
 printf("avfilter_graph_create_filter buffersrc error,ret:%d\n", ret);
 
 goto end;
 }

 ret = avfilter_graph_create_filter(buffersink_ctx, buffersink, "out", NULL, NULL, *filter_graph);
 if (ret < 0)
 {
 printf("avfilter_graph_create_filter buffersink error,ret:%d\n", ret);
 
 goto end;
 }
 ret = av_opt_set_int_list(*buffersink_ctx, "pix_fmts", pix_fmts, AV_PIX_FMT_NONE, AV_OPT_SEARCH_CHILDREN);
 if (ret < 0)
 {
 printf("av_opt_set_int_list error,ret:%d\n", ret);
 
 goto end;
 }
 /*
 * The buffer source output must be connected to the input pad of
 * the first filter described by filters_descr; since the first
 * filter input label is not specified, it is set to "in" by
 * default.
 */
 output->name = av_strdup("in");
 output->filter_ctx = *buffersrc_ctx;
 output->pad_idx = 0;
 output->next = NULL;

 /*
 * The buffer sink input must be connected to the output pad of
 * the last filter described by filters_descr; since the last
 * filter output label is not specified, it is set to "out" by
 * default.
 */
 input->name = av_strdup("out");
 input->filter_ctx = *buffersink_ctx;
 input->pad_idx = 0;
 input->next = NULL;

 if ((ret = avfilter_graph_parse_ptr(*filter_graph, filter_desc, &input, &output, NULL)) < 0)
 {
 printf("avfilter_graph_parse_ptr error,ret:%d\n", ret);
 
 goto end;
 }

 if ((ret = avfilter_graph_config(*filter_graph, NULL)) < 0)
 {
 printf("avfilter_graph_config error,ret:%d\n", ret);
 
 goto end;
 }
 end:
 avfilter_inout_free(&input);
 avfilter_inout_free(&output);
 return ret;
}

int main(int argc, char **argv)
{
 int ret;
 char msg[500];
 const char *filter_descr = "drawbox=x=100:y=100:w=100:h=100:color=pink@0.5"; // OK
 //const char *filter_descr = "movie=200.png[wm];[in][wm]overlay=10:10[out]"; //Test
 // const char *filter_descr = "scale=640:360,transpose=cclock";
 AVFormatContext *pFormatCtx = NULL;
 AVCodecContext *pCodecCtx;
 AVFilterContext *buffersink_ctx;
 AVFilterContext *buffersrc_ctx;
 AVFilterGraph *filter_graph;
 AVCodec *codec;
 int video_stream_index = -1;

 AVPacket packet;
 AVFrame *pFrame;
 AVFrame *pFrame_out;
 filter_graph = avfilter_graph_alloc();
 FILE *fp_yuv = fopen("test.yuv", "wb+");
 ret = avformat_open_input(&pFormatCtx, argv[1], NULL, NULL);
 if (ret < 0)
 {
 printf("avformat_open_input error,ret:%d\n", ret);
 
 return -1;
 }

 ret = avformat_find_stream_info(pFormatCtx, NULL);
 if (ret < 0)
 {
 printf("avformat_find_stream_info error,ret:%d\n", ret);
 
 return -2;
 }

 ret = av_find_best_stream(pFormatCtx, AVMEDIA_TYPE_VIDEO, -1, -1, &codec, 0);
 if (ret < 0)
 {
 printf("av_find_best_stream error,ret:%d\n", ret);
 
 return -3;
 }
 // 获取到视频流索引
 video_stream_index = ret;

 av_dump_format(pFormatCtx, 0, argv[1], 0);
 if ((ret = open_input_file(pFormatCtx, &pCodecCtx, codec, argv[1], video_stream_index)) < 0)
 {
 ret = -1;
 printf("open_input_file error,ret:%d\n", ret);
 
 goto end;
 }

 if ((ret = init_filter(&buffersrc_ctx, &buffersink_ctx, &filter_graph, pFormatCtx->streams[video_stream_index], pCodecCtx, filter_descr)) < 0)
 {
 ret = -2;
 printf("init_filter error,ret:%d\n", ret);
 
 goto end;
 }
 pFrame = av_frame_alloc();
 pFrame_out = av_frame_alloc();
 while (1)
 {
 if ((ret = av_read_frame(pFormatCtx, &packet)) < 0)
 break;

 if (packet.stream_index == video_stream_index)
 {
 ret = avcodec_send_packet(pCodecCtx, &packet);
 if (ret < 0)
 {
 printf("avcodec_send_packet error,ret:%d\n", ret);
 
 break;
 }

 while (ret >= 0)
 {
 ret = avcodec_receive_frame(pCodecCtx, pFrame);
 if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)
 {
 break;
 }
 else if (ret < 0)
 {
 printf("avcodec_receive_frame error,ret:%d\n", ret);
 
 goto end;
 }

 pFrame->pts = pFrame->best_effort_timestamp;

 /* push the decoded frame into the filtergraph */
 ret = av_buffersrc_add_frame_flags(buffersrc_ctx, pFrame, AV_BUFFERSRC_FLAG_KEEP_REF);
 if (ret < 0)
 {
 printf("av_buffersrc_add_frame_flags error,ret:%d\n", ret);
 
 break;
 }

 /* pull filtered frames from the filtergraph */
 while (1)
 {
 ret = av_buffersink_get_frame(buffersink_ctx, pFrame_out);
 if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)
 break;
 if (ret < 0)
 goto end;
 if (pFrame_out->format == AV_PIX_FMT_YUV420P)
 {
 //Y, U, V
 for (int i = 0; i < pFrame_out->height; i++)
 {
 fwrite(pFrame_out->data[0] + pFrame_out->linesize[0] * i, 1, pFrame_out->width, fp_yuv);
 }
 for (int i = 0; i < pFrame_out->height / 2; i++)
 {
 fwrite(pFrame_out->data[1] + pFrame_out->linesize[1] * i, 1, pFrame_out->width / 2, fp_yuv);
 }
 for (int i = 0; i < pFrame_out->height / 2; i++)
 {
 fwrite(pFrame_out->data[2] + pFrame_out->linesize[2] * i, 1, pFrame_out->width / 2, fp_yuv);
 }
 }
 av_frame_unref(pFrame_out);
 }
 av_frame_unref(pFrame);
 }
 }
 av_packet_unref(&packet);
 }
 end:
 avcodec_free_context(&pCodecCtx);
 fclose(fp_yuv);
}


-
ffmpeg xfade audio out of sync
1er décembre 2020, par Richardhi I am using ffmpeg xfade to concat two clips, the transition looks fine, but the second clip has no audio in the output. I don't find more information about this in https://trac.ffmpeg.org/wiki/Xfade and the official doc. Can I keep the audio of both clips in sync ?


I'm puttting the complete log below, it's massive


ffmpeg -i teacher1.mp4 -i teacher2.mp4 -filter_complex xfade=transition=fadewhite:duration=1:offset=14.5 output.mp4
ffmpeg version 4.3.1-static https://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2020 the FFmpeg developers
 built with gcc 8 (Debian 8.3.0-6)
 configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp --enable-libgme --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libdav1d --enable-libxvid --enable-libzvbi --enable-libzimg
 libavutil 56. 51.100 / 56. 51.100
 libavcodec 58. 91.100 / 58. 91.100
 libavformat 58. 45.100 / 58. 45.100
 libavdevice 58. 10.100 / 58. 10.100
 libavfilter 7. 85.100 / 7. 85.100
 libswscale 5. 7.100 / 5. 7.100
 libswresample 3. 7.100 / 3. 7.100
 libpostproc 55. 7.100 / 55. 7.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'teacher1.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf58.29.100
 Duration: 00:00:15.02, start: 0.000000, bitrate: 2447 kb/s
 Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080, 2315 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
 Metadata:
 handler_name : VideoHandler
 Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
 Metadata:
 handler_name : SoundHandler
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'teacher2.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf58.29.100
 Duration: 00:00:15.02, start: 0.000000, bitrate: 1643 kb/s
 Stream #1:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080, 1509 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
 Metadata:
 handler_name : VideoHandler
 Stream #1:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
 Metadata:
 handler_name : SoundHandler
Stream mapping:
 Stream #0:0 (h264) -> xfade:main (graph 0)
 Stream #1:0 (h264) -> xfade:xfade (graph 0)
 xfade (graph 0) -> Stream #0:0 (libx264)
 Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
[libx264 @ 0x64603c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x64603c0] profile High 4:4:4 Predictive, level 4.0, 4:4:4, 8-bit
[libx264 @ 0x64603c0] 264 - core 161 r3018 db0d417 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - 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=4 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 'output.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf58.45.100
 Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv444p, 1920x1080, q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)
 Metadata:
 encoder : Lavc58.91.100 libx264
 Side data:
 cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
 Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
 Metadata:
 handler_name : SoundHandler
 encoder : Lavc58.91.100 aac
frame= 738 fps= 25 q=-1.0 Lsize= 7317kB time=00:00:29.40 bitrate=2038.9kbits/s speed=1.01x 
video:7064kB audio:236kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.241368%
[libx264 @ 0x64603c0] frame I:8 Avg QP:16.56 size:100307
[libx264 @ 0x64603c0] frame P:332 Avg QP:19.50 size: 15211
[libx264 @ 0x64603c0] frame B:398 Avg QP:24.35 size: 3467
[libx264 @ 0x64603c0] consecutive B-frames: 6.2% 62.6% 8.9% 22.2%
[libx264 @ 0x64603c0] mb I I16..4: 18.7% 60.5% 20.9%
[libx264 @ 0x64603c0] mb P I16..4: 4.5% 7.6% 0.6% P16..4: 24.1% 5.6% 1.9% 0.0% 0.0% skip:55.7%
[libx264 @ 0x64603c0] mb B I16..4: 0.4% 0.5% 0.1% B16..8: 14.3% 0.9% 0.1% direct: 0.4% skip:83.3% L0:42.9% L1:53.9% BI: 3.3%
[libx264 @ 0x64603c0] 8x8 transform intra:59.2% inter:84.3%
[libx264 @ 0x64603c0] coded y,u,v intra: 25.3% 11.9% 13.0% inter: 3.2% 1.7% 1.8%
[libx264 @ 0x64603c0] i16 v,h,dc,p: 49% 25% 15% 12%
[libx264 @ 0x64603c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 17% 37% 2% 2% 3% 2% 3% 2%
[libx264 @ 0x64603c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 19% 15% 6% 7% 7% 6% 6% 5%
[libx264 @ 0x64603c0] Weighted P-Frames: Y:3.3% UV:1.5%
[libx264 @ 0x64603c0] ref P L0: 66.0% 8.0% 18.5% 7.5% 0.0%
[libx264 @ 0x64603c0] ref B L0: 84.9% 13.1% 2.0%
[libx264 @ 0x64603c0] ref B L1: 98.8% 1.2%
[libx264 @ 0x64603c0] kb/s:1960.04
[aac @ 0x64d1280] Qavg: 171.394


-
How to enable LHLS in FFMPEG 4.1 ?
27 décembre 2020, par mehdi.rI am trying to create a low latency CMAF video stream using FFMPEG.
To do so, I would like to enable the
lhlsoption in FFMPEG in order to have the#EXT-X-PREFETCHtag written in the HLS manifest.


From the FFMPEG doc :



https://www.ffmpeg.org/ffmpeg-all.html





Enable Low-latency HLS(LHLS). Adds #EXT-X-PREFETCH tag with current >segment’s URI. Apple doesn’t have an official spec for LHLS. Meanwhile >hls.js player folks are trying to standardize a open LHLS spec. The >draft spec is available in https://github.com/video-dev/hlsjs->rfcs/blob/lhls-spec/proposals/0001-lhls.md This option will also try >to comply with the above open spec, till Apple’s spec officially >supports it. Applicable only when streaming and hls_playlist options >are enabled. This is an experimental feature.





I am using the following command with FFMPEG 4.1 :



ffmpeg -re -i ~/Documents/videos/BigBuckBunny.mp4 \
 -map 0 -map 0 -map 0 -c:a aac -c:v libx264 -tune zerolatency \
 -b:v:0 2000k -s:v:0 1280x720 -profile:v:0 high \
 -b:v:1 1500k -s:v:1 640x340 -profile:v:1 main \
 -b:v:2 500k -s:v:2 320x170 -profile:v:2 baseline \
 -bf 1 \
 -keyint_min 24 -g 24 -sc_threshold 0 -b_strategy 0 -ar:a:1 22050 -use_timeline 1 -use_template 1 \
 -window_size 5 -adaptation_sets "id=0,streams=v id=1,streams=a" \
 -hls_playlist 1 -seg_duration 1 -streaming 1 -strict experimental -lhls 1 -remove_at_exit 1 \
 -f dash manifest.mpd




The kind of HLS manifest I obtained for a specific resolution :



#EXTM3U
#EXT-X-VERSION:6
#EXT-X-TARGETDURATION:1
#EXT-X-MEDIA-SEQUENCE:8
#EXT-X-MAP:URI="init-stream0.mp4"
#EXTINF:0.998458,
#EXT-X-PROGRAM-DATE-TIME:2019-06-21T18:13:56.966+0900
chunk-stream0-00008.mp4
#EXTINF:0.998458,
#EXT-X-PROGRAM-DATE-TIME:2019-06-21T18:13:57.964+0900
chunk-stream0-00009.mp4
#EXTINF:0.998458,
#EXT-X-PROGRAM-DATE-TIME:2019-06-21T18:13:58.963+0900
chunk-stream0-00010.mp4
#EXTINF:0.998458,
#EXT-X-PROGRAM-DATE-TIME:2019-06-21T18:13:59.961+0900
chunk-stream0-00011.mp4
#EXTINF:1.021678,
#EXT-X-PROGRAM-DATE-TIME:2019-06-21T18:14:00.960+0900
chunk-stream0-00012.mp4
...




As you can see the
#EXT-X-PREFETCHtag is missing.


Any help would be highly appreciated.



Edit



I also compiled FFmpeg from its master branch by doing the following :



nasm



sudo apt-get install nasm mingw-w64



Codecs



sudo apt-get install libx265-dev libnuma-dev libx264-dev libvpx-dev libfdk-aac-dev libmp3lame-dev libopus-dev



FFmpeg



mkdir lhls
cd lhls 
git init 
git clone https://github.com/FFmpeg/FFmpeg.git
cd FFmpeg 
git checkout master



AOM (inside FFmpeg dir)



git -C aom pull 2> /dev/null || git clone --depth 1 https://aomedia.googlesource.com/aom && \
mkdir -p aom_build && \
cd aom_build && \
PATH="$HOME/bin:$PATH" cmake -G "Unix Makefiles" -DCMAKE_INSTALL_PREFIX="$HOME/ffmpeg_build" -DENABLE_SHARED=off -DENABLE_NASM=on ../aom && \
PATH="$HOME/bin:$PATH" make && \
make install
cd..



Compiling



PATH="$HOME/bin:$PATH" PKG_CONFIG_PATH="$HOME/ffmpeg_build/lib/pkgconfig" ./configure \
 --prefix="$HOME/ffmpeg_build" \
 --pkg-config-flags="--static" \
 --extra-cflags="-I$HOME/ffmpeg_build/include" \
 --extra-ldflags="-L$HOME/ffmpeg_build/lib" \
 --extra-libs="-lpthread -lm" \
 --bindir="$HOME/bin" \
 --enable-gpl \
 --enable-libaom \
 --enable-libass \
 --enable-libfdk-aac \
 --enable-libfreetype \
 --enable-libmp3lame \
 --enable-libopus \
 --enable-libvorbis \
 --enable-libvpx \
 --enable-libx264 \
 --enable-libx265 \
 --enable-nonfree && \
PATH="$HOME/bin:$PATH" make 



Unfortunately, the
#EXT-X-PREFETCHis still missing in the HLS Manifest.


I also tried nightly builds from https://ffmpeg.zeranoe.com/builds/ , same result.



Any help would be highly appreciated.



EDIT 2 :resolved



Thanks to @aergistal and @Gyan , the
#EXT-X-PREFETCHtag is now present in my HLS manifest.


Here the FFMPEG command I am using :



./ffmpeg -re -i ~/videos/BigBuckBunny.mp4 -loglevel debug \
 -map 0 -map 0 -map 0 -c:a aac -c:v libx264 -tune zerolatency \
 -b:v:0 2000k -s:v:0 1280x720 -profile:v:0 high -b:v:1 1500k -s:v:1 640x340 -profile:v:1 main -b:v:2 500k -s:v:2 320x170 -profile:v:2 baseline -bf 1 \
 -keyint_min 24 -g 24 -sc_threshold 0 -b_strategy 0 -ar:a:1 22050 -use_timeline 1 -use_template 1 -window_size 5 \
 -adaptation_sets "id=0,streams=v id=1,streams=a" -hls_playlist 1 -seg_duration 3 -streaming 1 \
 -strict experimental -lhls 1 -remove_at_exit 0 -master_m3u8_publish_rate 3 \
 -f dash -method PUT -http_persistent 1 https://example.com/manifest.mpd



Apparently the mime types are not passed to the server & FFmpeg seems to ignore the
-headersoption.

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