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Add frame dropping possibilities to recorder.

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This commit is contained in:
Themaister 2012-11-26 18:01:50 +01:00
parent cf1a0381c7
commit 26025371d6
1 changed files with 16 additions and 1 deletions
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17
record/ffemu.c
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@ -70,6 +70,9 @@ struct ff_video_info
// Input pixel format. Only used by sws.
enum PixelFormat in_pix_fmt;
unsigned frame_drop_ratio;
unsigned frame_drop_count;
// Input pixel size.
size_t pix_size;
@ -122,6 +125,7 @@ struct ff_config_param
char format[64];
enum PixelFormat out_pix_fmt;
unsigned threads;
unsigned frame_drop_ratio;
unsigned sample_rate;
unsigned scale_factor;
@ -312,7 +316,7 @@ static bool ffemu_init_video(struct ff_config_param *params, struct ff_video_inf
video->codec->codec_type = AVMEDIA_TYPE_VIDEO;
video->codec->width = param->out_width;
video->codec->height = param->out_height;
video->codec->time_base = av_d2q(1.0 / param->fps, 1000000); // Arbitrary big number.
video->codec->time_base = av_d2q((double)params->frame_drop_ratio / param->fps, 1000000); // Arbitrary big number.
video->codec->sample_aspect_ratio = av_d2q(param->aspect_ratio * param->out_height / param->out_width, 255);
video->codec->pix_fmt = video->pix_fmt;
@ -325,6 +329,8 @@ static bool ffemu_init_video(struct ff_config_param *params, struct ff_video_inf
video->outbuf_size = 1 << 23;
video->outbuf = (uint8_t*)av_malloc(video->outbuf_size);
video->frame_drop_ratio = params->frame_drop_ratio;
size_t size = avpicture_get_size(video->pix_fmt, param->out_width, param->out_height);
video->conv_frame_buf = (uint8_t*)av_malloc(size);
video->conv_frame = avcodec_alloc_frame();
@ -354,6 +360,10 @@ static bool ffemu_init_config(struct ff_config_param *params, const char *config
if (!config_get_uint(params->conf, "threads", &params->threads))
params->threads = 1;
if (!config_get_uint(params->conf, "frame_drop_ratio", &params->frame_drop_ratio)
|| !params->frame_drop_ratio)
params->frame_drop_ratio = 1;
if (!config_get_uint(params->conf, "sample_rate", &params->sample_rate))
params->sample_rate = 0;
if (!config_get_uint(params->conf, "scale_factor", &params->scale_factor))
@ -591,6 +601,11 @@ void ffemu_free(ffemu_t *handle)
bool ffemu_push_video(ffemu_t *handle, const struct ffemu_video_data *data)
{
bool drop_frame = handle->video.frame_drop_count++ % handle->video.frame_drop_ratio;
handle->video.frame_drop_count %= handle->video.frame_drop_ratio;
if (drop_frame)
return true;
for (;;)
{
slock_lock(handle->lock);