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avcodec/mpegutils: print axis in debug_info2

Browse Source 
For example,

./ffmpeg -nostats -threads 1 -debug qp \
	-export_side_data +venc_params \
	-i reinit-small_420_9-to-small_420_8.h264 \
	-frames 2 \
	-f null -

New frame, type: B
    0       64      128     192
  0 313131313131313131313131313129
 16 292929292929292929292929292929
 32 323232323232323232323232323232
 48 323232323232323232323232323232
 64 323232323232323232323232323232
 80 323232323232323232323232323232
 96 323232323030303030303030303030
112 303030303030303030303030303030
128 303030303030303030303030303028
144 313131312929292929292929292929
160 292929292929292929292929292929
176 292929292929292929292929292931
192 312831312631313131312730283131

Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
This commit is contained in:
Zhao Zhili 2023-12-30 01:20:16 +08:00
parent bd48c08f80
commit 33698ef891
1 changed files with 31 additions and 0 deletions
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31
libavcodec/mpegutils.c
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@ -254,12 +254,43 @@ void ff_print_debug_info2(AVCodecContext *avctx, AVFrame *pict,
AVBPrint buf;
char *str = NULL;
int n;
int margin_left;
int x_step;
av_log(avctx, AV_LOG_DEBUG, "New frame, type: %c\n",
av_get_picture_type_char(pict->pict_type));
margin_left = 2;
n = mb_width << 4;
while ((n /= 10))
margin_left++;
av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
av_bprintf(&buf, "%*s", margin_left, " ");
n = 0;
if (avctx->debug & FF_DEBUG_SKIP)
n++;
if (avctx->debug & FF_DEBUG_QP)
n += 2;
if (avctx->debug & FF_DEBUG_MB_TYPE)
n += 3;
x_step = (mb_width * 16 > 999) ? 8 : 4;
for (x = 0; x < mb_width; x += x_step)
av_bprintf(&buf, "%-*d", n * x_step, x << 4);
n = av_bprint_finalize(&buf, &str);
if (n < 0) {
av_log(avctx, AV_LOG_ERROR, "%s failed, %s\n", __func__, av_err2str(n));
return;
}
av_log(avctx, AV_LOG_DEBUG, "%s\n", str);
av_freep(&str);
for (y = 0; y < mb_height; y++) {
av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
for (x = 0; x < mb_width; x++) {
if (x == 0)
av_bprintf(&buf, "%*d ", margin_left - 1, y << 4);
if (avctx->debug & FF_DEBUG_SKIP) {
int count = mbskip_table ? mbskip_table[x + y * mb_stride] : 0;
if (count > 9)