[FFmpeg-devel] Possible incomplete commit "avcodec/nvenc: support RGB input"

Thu Sep 8 13:00:59 EEST 2016

Hallo,

ich schicke Dir noch einen weitere Backtrace mit etwas mehr Details:

(gdb) bt
#0  0x00007f19eb8e3a3e in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x0000000000fbc63e in av_image_copy_plane (height=8, bytewidth=7680, 
src_linesize=<optimized out>, src=0x7f19ea08f000 "", dst_linesize=<optimized 
out>, dst=<optimized out>) at src/libavutil/imgutils.c:296
#2  av_image_copy (dst_data=dst_data at entry=0x7ffe7ef4c720, 
dst_linesizes=dst_linesizes at entry=0x7ffe7ef4c710, 
src_data=src_data at entry=0x402c340, src_linesizes=src_linesizes at entry=0x402c380, 
pix_fmt=AV_PIX_FMT_BGR0, width=1920,
     height=1088) at src/libavutil/imgutils.c:334
#3  0x0000000000e37321 in nvenc_copy_frame (avctx=0x395af00, 
nv_surface=0x3dff560, nv_surface=0x3dff560, lock_buffer_params=0x7ffe7ef4c740, 
lock_buffer_params=0x7ffe7ef4c740, frame=0x402c340) at src/libavcodec/nvenc.c:1312
#4  nvenc_upload_frame (nvenc_frame=0x3dff560, frame=0x402c340, avctx=0x395af00) 
at src/libavcodec/nvenc.c:1430
#5  ff_nvenc_encode_frame (avctx=0x395af00, pkt=0x7ffe7ef4dc90, frame=0x402c340, 
got_packet=0x7ffe7ef4db4c) at src/libavcodec/nvenc.c:1660
#6  0x0000000000a8c9c3 in avcodec_encode_video2 (avctx=avctx at entry=0x395af00, 
avpkt=avpkt at entry=0x7ffe7ef4dc90, frame=frame at entry=0x402c340, 
got_packet_ptr=got_packet_ptr at entry=0x7ffe7ef4db4c) at src/libavcodec/utils.c:1961
#7  0x0000000000496448 in do_video_out (s=0x39592c0, ost=ost at entry=0x395ad00, 
next_picture=next_picture at entry=0x402c340, sync_ipts=<optimized out>, 
sync_ipts at entry=-7.62939453125e-06) at src/ffmpeg.c:1175
#8  0x0000000000498d7f in reap_filters (flush=flush at entry=0) at src/ffmpeg.c:1366
#9  0x000000000049a940 in transcode_step () at src/ffmpeg.c:4117
#10 transcode () at src/ffmpeg.c:4161
#11 0x000000000047d11c in main (argc=<optimized out>, argv=0x7ffe7ef4e5d8) at 
src/ffmpeg.c:4356

..

#3  0x0000000000e37321 in nvenc_copy_frame (avctx=0x395af00, 
nv_surface=0x3dff560, nv_surface=0x3dff560, lock_buffer_params=0x7ffe7ef4c740, 
lock_buffer_params=0x7ffe7ef4c740, frame=0x402c340) at src/libavcodec/nvenc.c:1312
1312        av_image_copy(dst_data, dst_linesize,
(gdb) list
1307            return ret;
1308
1309        if (frame->format == AV_PIX_FMT_YUV420P)
1310            FFSWAP(uint8_t*, dst_data[1], dst_data[2]);
1311
1312        av_image_copy(dst_data, dst_linesize,
1313                      (const uint8_t**)frame->data, frame->linesize, 
frame->format,
1314                      nv_surface->width, nv_surface->height);
1315
1316        return 0;
(gdb) ins dst_data
$10 = {0x2049e0000 "\352", <incomplete sequence \352\352>, 0x0, 0x0, 0x0}
(gdb) ins dst_linesize
$11 = {7680, 7680, 7680, 7680}
(gdb) ins frame
$12 = (const AVFrame *) 0x402c340
(gdb) ins *frame
$13 = {data = {0x7f19e98a6000 "\352", <incomplete sequence \352\352>, 0x0, 0x0, 
0x0, 0x0, 0x0, 0x0, 0x0}, linesize = {7680, 0, 0, 0, 0, 0, 0, 0}, extended_data 
= 0x402c340, width = 1920, height = 1080, nb_samples = 0, format = 298,
   key_frame = 1, pict_type = AV_PICTURE_TYPE_NONE, sample_aspect_ratio = {num = 
0, den = 1}, pts = 0, pkt_pts = 0, pkt_dts = 0, coded_picture_number = 0, 
display_picture_number = 0, quality = 0, opaque = 0x0, error = {0, 0, 0, 0, 0, 0,
     0, 0}, repeat_pict = 0, interlaced_frame = 0, top_field_first = 0, 
palette_has_changed = 0, reordered_opaque = -9223372036854775808, sample_rate = 
0, channel_layout = 0, buf = {0x402b9c0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
   extended_buf = 0x0, nb_extended_buf = 0, side_data = 0x0, nb_side_data = 0, 
flags = 0, color_range = AVCOL_RANGE_UNSPECIFIED, color_primaries = 
AVCOL_PRI_UNSPECIFIED, color_trc = AVCOL_TRC_UNSPECIFIED,
   colorspace = AVCOL_SPC_UNSPECIFIED, chroma_location = 
AVCHROMA_LOC_UNSPECIFIED, best_effort_timestamp = 0, pkt_pos = -1, pkt_duration 
= 0, metadata = 0x0, decode_error_flags = 0, channels = 0, pkt_size = 8294400, 
qscale_table = 0x0,
   qstride = 0, qscale_type = 0, qp_table_buf = 0x0, hw_frames_ctx = 0x0}
(gdb) ins nv_surface
$14 = (NvencSurface *) 0x3dff560
(gdb) ins *nv_surface
$15 = {input_surface = 0x3e0c090, in_ref = 0x0, in_map = {version = 0, 
subResourceIndex = 0, inputResource = 0x0, registeredResource = 0x0, 
mappedResource = 0x0, mappedBufferFmt = NV_ENC_BUFFER_FORMAT_UNDEFINED, 
reserved1 = {
       0 <repeats 251 times>}, reserved2 = {0x0 <repeats 63 times>}}, reg_idx = 
0, width = 1920, height = 1088, pitch = 7680, output_surface = 0x3d97f20, format 
= NV_ENC_BUFFER_FORMAT_ARGB, size = 1048576, lockCount = 1}


On 08/09/16 10:30, Timo Rothenpieler wrote:
>>> for fmt in yuv420p nv12 bgr0 rgb0; do
>>>      ./ffmpeg -f lavfi -i "testsrc=size=1920x1080:duration=10:rate=30"
>>> -c:v h264_nvenc -global_quality 20 -pix_fmt "$fmt" -y out_"${fmt}".mkv
>>> done
>> You feed to nvenc only rgb? what testsrc only supports. Use testsrc2.
> pix_fmt should make sure it's properly converted, and according to the
> output, it does:
>
>
> Stream #0:0: Video: h264 (h264_nvenc) (Main) (H264 / 0x34363248),
> yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 2000 kb/s, 30 fps, 1k
> tbn, 30 tbc
>
> Stream #0:0: Video: h264 (h264_nvenc) (Main) (H264 / 0x34363248), nv12,
> 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 2000 kb/s, 30 fps, 1k tbn, 30 tbc
>
> Stream #0:0: Video: h264 (h264_nvenc) (Main) (H264 / 0x34363248), bgr0,
> 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 2000 kb/s, 30 fps, 1k tbn, 30 tbc
>
> Stream #0:0: Video: h264 (h264_nvenc) (Main) (H264 / 0x34363248), rgb0,
> 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 2000 kb/s, 30 fps, 1k tbn, 30 tbc
>
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