* Add mapping for V4L2_PIX_FMT_HEVC payloads * Request bitstream parsing just like H264
Signed-off-by: Dima Buzdyk <dima.buz...@gmail.com> --- libavdevice/v4l2-common.c | 3 +++ libavdevice/v4l2.c | 2 +- 2 files changed, 4 insertions(+), 1 deletion(-) This change add support for HEVC playback for v4l2 devices. Corresponding Linux kernel patch for UVC devices submitted to https://patchwork.kernel.org/patch/11577395/ Sample output of ffmpeg for camera capable of HEVC streaming: 1. Available formats: ~/packages/ffmpeg/ffmpeg-git$ ./ffmpeg -f v4l2 -list_formats all -i /dev/video2 ffmpeg version 4.3.git Copyright (c) 2000-2020 the FFmpeg developers built with gcc 9 (Ubuntu 9.3.0-10ubuntu2) configuration: libavutil 56. 55.100 / 56. 55.100 libavcodec 58. 96.100 / 58. 96.100 libavformat 58. 48.100 / 58. 48.100 libavdevice 58. 11.101 / 58. 11.101 libavfilter 7. 87.100 / 7. 87.100 libswscale 5. 8.100 / 5. 8.100 libswresample 3. 8.100 / 3. 8.100 [video4linux2,v4l2 @ 0x55c04e131700] Compressed: h264 : H.264 : 1440x1920 [video4linux2,v4l2 @ 0x55c04e131700] Compressed: hevc : HEVC : 1440x1920 [video4linux2,v4l2 @ 0x55c04e131700] Compressed: mjpeg : Motion-JPEG : 3000x4000 /dev/video2: Immediate exit requested 2. ffprobe output for given input format: ~/packages/ffmpeg/ffmpeg-git$ ./ffprobe -f v4l2 -input_format hevc -i /dev/video2 ffprobe version 4.3.git Copyright (c) 2007-2020 the FFmpeg developers built with gcc 9 (Ubuntu 9.3.0-10ubuntu2) configuration: libavutil 56. 55.100 / 56. 55.100 libavcodec 58. 96.100 / 58. 96.100 libavformat 58. 48.100 / 58. 48.100 libavdevice 58. 11.101 / 58. 11.101 libavfilter 7. 87.100 / 7. 87.100 libswscale 5. 8.100 / 5. 8.100 libswresample 3. 8.100 / 3. 8.100 Input #0, video4linux2,v4l2, from '/dev/video2': Duration: N/A, start: 416791.927897, bitrate: N/A Stream #0:0: Video: hevc (Main), yuv420p(tv), 1440x1920, 30 fps, 30 tbr, 1000k tbn, 29.97 tbc diff --git a/libavdevice/v4l2-common.c b/libavdevice/v4l2-common.c index b5b4448a31..353e83efdd 100644 --- a/libavdevice/v4l2-common.c +++ b/libavdevice/v4l2-common.c @@ -55,6 +55,9 @@ const struct fmt_map ff_fmt_conversion_table[] = { #ifdef V4L2_PIX_FMT_H264 { AV_PIX_FMT_NONE, AV_CODEC_ID_H264, V4L2_PIX_FMT_H264 }, #endif +#ifdef V4L2_PIX_FMT_HEVC + { AV_PIX_FMT_NONE, AV_CODEC_ID_HEVC, V4L2_PIX_FMT_HEVC }, +#endif #ifdef V4L2_PIX_FMT_MPEG4 { AV_PIX_FMT_NONE, AV_CODEC_ID_MPEG4, V4L2_PIX_FMT_MPEG4 }, #endif diff --git a/libavdevice/v4l2.c b/libavdevice/v4l2.c index 365bacd771..70e0f620f8 100644 --- a/libavdevice/v4l2.c +++ b/libavdevice/v4l2.c @@ -960,7 +960,7 @@ static int v4l2_read_header(AVFormatContext *ctx) if (codec_id == AV_CODEC_ID_RAWVIDEO) st->codecpar->codec_tag = avcodec_pix_fmt_to_codec_tag(st->codecpar->format); - else if (codec_id == AV_CODEC_ID_H264) { + else if (codec_id == AV_CODEC_ID_H264 || codec_id == AV_CODEC_ID_HEVC) { st->need_parsing = AVSTREAM_PARSE_FULL_ONCE; } if (desired_format == V4L2_PIX_FMT_YVU420) -- Dmitry Buzdyk Rhonda Software _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
