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support printing compact qp histogram

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Originally committed as revision 4755 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2005-12-18 20:01:02 +00:00
parent 71160c55e0
commit 0888fd220c
1 changed files with 13 additions and 2 deletions
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15
ffmpeg.c
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@ -162,6 +162,7 @@ static int frame_skip_exp= 0;
extern int loop_input; /* currently a hack */
static int loop_output = AVFMT_NOOUTPUTLOOP;
static int genpts = 0;
static int qp_hist = 0;
static int gop_size = 12;
static int intra_only = 0;
@ -1054,6 +1055,7 @@ static void print_report(AVFormatContext **output_files,
int frame_number, vid, i;
double bitrate, ti1, pts;
static int64_t last_time = -1;
static int qp_histogram[52];
if (!is_last_report) {
int64_t cur_time;
@ -1086,10 +1088,18 @@ static void print_report(AVFormatContext **output_files,
}
if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
frame_number = ost->frame_number;
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d q=%2.1f ",
frame_number, enc->coded_frame ? enc->coded_frame->quality/(float)FF_QP2LAMBDA : 0);
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d q=%3.1f ",
frame_number, enc->coded_frame ? enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
if(is_last_report)
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
if(qp_hist && enc->coded_frame){
int j;
int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
if(qp>=0 && qp<sizeof(qp_histogram)/sizeof(int))
qp_histogram[qp]++;
for(j=0; j<32; j++)
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
}
if (enc->flags&CODEC_FLAG_PSNR){
int j;
double error, error_sum=0;
@ -4097,6 +4107,7 @@ const OptionDef options[] = {
{ "skip_exp", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&frame_skip_exp}, "frame skip exponent", "exponent" },
{ "newvideo", OPT_VIDEO, {(void*)opt_new_video_stream}, "add a new video stream to the current output stream" },
{ "genpts", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, { (void *)&genpts }, "generate pts" },
{ "qphist", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, { (void *)&qp_hist }, "show QP histogram" },
/* audio options */
{ "ab", HAS_ARG | OPT_AUDIO, {(void*)opt_audio_bitrate}, "set audio bitrate (in kbit/s)", "bitrate", },