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ffplay: add specific constants for buffer fullness settings when using external clock

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Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Marton Balint 2015-08-08 21:07:44 +02:00
parent 7fbafd0b1b
commit 0166d329c3
1 changed files with 6 additions and 4 deletions
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10
ffplay.c
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@ -67,6 +67,8 @@ const int program_birth_year = 2003;
#define MAX_QUEUE_SIZE (15 * 1024 * 1024)
#define MIN_FRAMES 5
#define EXTERNAL_CLOCK_MIN_FRAMES 2
#define EXTERNAL_CLOCK_MAX_FRAMES 10
/* Minimum SDL audio buffer size, in samples. */
#define SDL_AUDIO_MIN_BUFFER_SIZE 512
@ -1301,11 +1303,11 @@ static double get_master_clock(VideoState *is)
}
static void check_external_clock_speed(VideoState *is) {
if (is->video_stream >= 0 && is->videoq.nb_packets <= MIN_FRAMES / 2 ||
is->audio_stream >= 0 && is->audioq.nb_packets <= MIN_FRAMES / 2) {
if (is->video_stream >= 0 && is->videoq.nb_packets <= EXTERNAL_CLOCK_MIN_FRAMES ||
is->audio_stream >= 0 && is->audioq.nb_packets <= EXTERNAL_CLOCK_MIN_FRAMES) {
set_clock_speed(&is->extclk, FFMAX(EXTERNAL_CLOCK_SPEED_MIN, is->extclk.speed - EXTERNAL_CLOCK_SPEED_STEP));
} else if ((is->video_stream < 0 || is->videoq.nb_packets > MIN_FRAMES * 2) &&
(is->audio_stream < 0 || is->audioq.nb_packets > MIN_FRAMES * 2)) {
} else if ((is->video_stream < 0 || is->videoq.nb_packets > EXTERNAL_CLOCK_MAX_FRAMES) &&
(is->audio_stream < 0 || is->audioq.nb_packets > EXTERNAL_CLOCK_MAX_FRAMES)) {
set_clock_speed(&is->extclk, FFMIN(EXTERNAL_CLOCK_SPEED_MAX, is->extclk.speed + EXTERNAL_CLOCK_SPEED_STEP));
} else {
double speed = is->extclk.speed;