virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-01-24 13:56:33 +02:00
Code Issues Releases Activity

lavfi/aevalsrc: use AV_OPT_TYPE_DURATION

Browse Source 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2013-07-10 18:42:47 +00:00
parent 1e89f74902
commit badbd2414d
1 changed files with 5 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
libavfilter/asrc_aevalsrc.c
View File

@ -58,8 +58,7 @@ typedef struct {
AVExpr *expr[8];
char *exprs;
int nb_samples; ///< number of samples per requested frame
char *duration_str; ///< total duration of the generated audio
double duration;
int64_t duration;
uint64_t n;
double var_values[VAR_VARS_NB];
} EvalContext;
@ -73,8 +72,8 @@ static const AVOption aevalsrc_options[]= {
{ "n", "set the number of samples per requested frame", OFFSET(nb_samples), AV_OPT_TYPE_INT, {.i64 = 1024}, 0, INT_MAX, FLAGS },
{ "sample_rate", "set the sample rate", OFFSET(sample_rate_str), AV_OPT_TYPE_STRING, {.str = "44100"}, CHAR_MIN, CHAR_MAX, FLAGS },
{ "s", "set the sample rate", OFFSET(sample_rate_str), AV_OPT_TYPE_STRING, {.str = "44100"}, CHAR_MIN, CHAR_MAX, FLAGS },
{ "duration", "set audio duration", OFFSET(duration_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
{ "d", "set audio duration", OFFSET(duration_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
{ "duration", "set audio duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64 = -1}, -1, INT64_MAX, FLAGS },
{ "d", "set audio duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64 = -1}, -1, INT64_MAX, FLAGS },
{ "channel_layout", "set channel layout", OFFSET(chlayout_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
{ "c", "set channel layout", OFFSET(chlayout_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
{NULL},
@ -135,16 +134,6 @@ static int init(AVFilterContext *ctx)
if ((ret = ff_parse_sample_rate(&eval->sample_rate, eval->sample_rate_str, ctx)))
goto end;
eval->duration = -1;
if (eval->duration_str) {
int64_t us = -1;
if ((ret = av_parse_time(&us, eval->duration_str, 1)) < 0) {
av_log(ctx, AV_LOG_ERROR, "Invalid duration: '%s'\n", eval->duration_str);
goto end;
}
eval->duration = (double)us / 1000000;
}
eval->n = 0;
end:
@ -162,7 +151,6 @@ static av_cold void uninit(AVFilterContext *ctx)
eval->expr[i] = NULL;
}
av_freep(&eval->chlayout_str);
av_freep(&eval->duration_str);
av_freep(&eval->sample_rate_str);
}
@ -179,7 +167,7 @@ static int config_props(AVFilterLink *outlink)
av_get_channel_layout_string(buf, sizeof(buf), 0, eval->chlayout);
av_log(outlink->src, AV_LOG_VERBOSE,
"sample_rate:%d chlayout:%s duration:%f\n",
"sample_rate:%d chlayout:%s duration:%"PRId64"\n",
eval->sample_rate, buf, eval->duration);
return 0;
@ -204,7 +192,7 @@ static int request_frame(AVFilterLink *outlink)
EvalContext *eval = outlink->src->priv;
AVFrame *samplesref;
int i, j;
double t = eval->n * (double)1/eval->sample_rate;
int64_t t = av_rescale(eval->n, AV_TIME_BASE, eval->sample_rate);
if (eval->duration >= 0 && t >= eval->duration)
return AVERROR_EOF;