cis-oss/libav-wasm
2
0
Fork 0
forked from forks/ffprobe-wasm
Code Pull Requests Activity

add FPS information (#12)

Browse Source
This commit is contained in:
maggievu-pdftron
2021-12-13 17:47:25 -08:00
committed by GitHub
parent eb3579d9a8
commit c8bc8ef4a4
2 changed files with 5 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
src/ffprobe-wasm-wrapper.cpp
View File

@@ -68,6 +68,7 @@ typedef struct FramesResponse {
int gop_size; int gop_size;
int duration; int duration;
double time_base; double time_base;
double avg_frame_rate;
} FramesResponse; } FramesResponse;
FileInfoResponse get_file_info(std::string filename) { FileInfoResponse get_file_info(std::string filename) {
@@ -195,11 +196,13 @@ FramesResponse get_frames(std::string filename, int timestamp) {
} }
AVRational stream_time_base = pFormatContext->streams[video_stream_index]->time_base; AVRational stream_time_base = pFormatContext->streams[video_stream_index]->time_base;
AVRational avg_frame_rate = pFormatContext->streams[video_stream_index]->avg_frame_rate;
// printf("stream_time_base: %d / %d = %.5f\n", stream_time_base.num, stream_time_base.den, av_q2d(stream_time_base)); // printf("stream_time_base: %d / %d = %.5f\n", stream_time_base.num, stream_time_base.den, av_q2d(stream_time_base));
FramesResponse r; FramesResponse r;
r.nb_frames = nb_frames; r.nb_frames = nb_frames;
r.time_base = av_q2d(stream_time_base); r.time_base = av_q2d(stream_time_base);
r.avg_frame_rate = av_q2d(avg_frame_rate);
r.duration = pFormatContext->streams[video_stream_index]->duration; r.duration = pFormatContext->streams[video_stream_index]->duration;
// If the duration value isn't in the stream, get from the FormatContext. // If the duration value isn't in the stream, get from the FormatContext.
@@ -316,6 +319,7 @@ EMSCRIPTEN_BINDINGS(structs) {
.field("gop_size", &FramesResponse::gop_size) .field("gop_size", &FramesResponse::gop_size)
.field("duration", &FramesResponse::duration) .field("duration", &FramesResponse::duration)
.field("time_base", &FramesResponse::time_base) .field("time_base", &FramesResponse::time_base)
.field("avg_frame_rate", &FramesResponse::avg_frame_rate)
; ;
function("get_frames", &get_frames); function("get_frames", &get_frames);
} }

1
www/src/components/Frames.vue
View File

@@ -54,6 +54,7 @@ export default {
{ name: 'Duration', value: this.data.duration }, { name: 'Duration', value: this.data.duration },
{ name: 'Timebase', value: this.data.time_base }, { name: 'Timebase', value: this.data.time_base },
{ name: 'Total Frames', value: this.data.nb_frames }, { name: 'Total Frames', value: this.data.nb_frames },
{ name: 'FPS', value: this.data.avg_frame_rate },
] ]
} }
}, },