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Refactor to load wasm module in a web worker to prevent blocking main browser thread. Update FS to use WORKERFS.

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This commit is contained in:
Alf
2020-12-21 22:38:14 -08:00
parent 8dadddcb24
commit 3a7d96443c
6 changed files with 26 additions and 48 deletions
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20
src/ffprobe-wasm-wrapper.cpp
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@@ -1,5 +1,6 @@
#include <vector>
#include <string>
#include <vector>
#include <inttypes.h>
#include <emscripten.h>
#include <emscripten/bind.h>
@@ -65,8 +66,8 @@ typedef struct FramesResponse {
int nb_frames;
} FramesResponse;
FileInfoResponse get_file_info() {
FILE *file = fopen("file", "rb");
FileInfoResponse get_file_info(std::string filename) {
FILE *file = fopen(filename.c_str(), "rb");
if (!file) {
printf("cannot open file\n");
}
@@ -79,9 +80,8 @@ FileInfoResponse get_file_info() {
// Open the file and read header.
int ret;
if ((ret = avformat_open_input(&pFormatContext, "file", NULL, NULL)) < 0) {
printf("ERROR: could not open the file. Error: %d\n", ret);
printf("%s", av_err2str(ret));
if ((ret = avformat_open_input(&pFormatContext, filename.c_str(), NULL, NULL)) < 0) {
printf("ERROR: %s\n", av_err2str(ret));
}
// Get stream info from format.
@@ -135,10 +135,10 @@ FileInfoResponse get_file_info() {
return r;
}
FramesResponse get_frames(int offset) {
FramesResponse get_frames(std::string filename, int offset) {
av_log_set_level(AV_LOG_QUIET); // No logging output for libav.
FILE *file = fopen("file", "rb");
FILE *file = fopen(filename.c_str(), "rb");
if (!file) {
printf("cannot open file\n");
}
@@ -151,9 +151,8 @@ FramesResponse get_frames(int offset) {
// Open the file and read header.
int ret;
if ((ret = avformat_open_input(&pFormatContext, "file", NULL, NULL)) < 0) {
printf("ERROR: could not open the file. Error: %d\n", ret);
printf("%s", av_err2str(ret));
if ((ret = avformat_open_input(&pFormatContext, filename.c_str(), NULL, NULL)) < 0) {
printf("ERROR: %s\n", av_err2str(ret));
}
// Get stream info from format.
@@ -239,7 +238,6 @@ FramesResponse get_frames(int offset) {
return r;
}
EMSCRIPTEN_BINDINGS(constants) {
function("avformat_version", &c_avformat_version);
function("avcodec_version", &c_avcodec_version);