static bool ffmpeg_image_init(struct ffmpeg_image *info, const char *file)
{
int ret;
memset(info, 0, sizeof(struct ffmpeg_image));
info->file = file;
info->stream_idx = -1;
ret = avformat_open_input(&info->fmt_ctx, file, NULL, NULL);
if (ret < 0) {
blog(LOG_WARNING, "Failed to open file '%s': %s",
info->file, av_err2str(ret));
return false;
}
ret = avformat_find_stream_info(info->fmt_ctx, NULL);
if (ret < 0) {
blog(LOG_WARNING, "Could not find stream info for file '%s':"
" %s", info->file, av_err2str(ret));
goto fail;
}
if (!ffmpeg_image_open_decoder_context(info))
goto fail;
info->cx = info->decoder_ctx->width;
info->cy = info->decoder_ctx->height;
info->format = info->decoder_ctx->pix_fmt;
return true;
fail:
ffmpeg_image_free(info);
return false;
}
texture_t gs_create_texture_from_file(const char *file)
{
struct ffmpeg_image image;
texture_t tex = NULL;
if (ffmpeg_image_init(&image, file)) {
uint8_t *data = malloc(image.cx * image.cy * 4);
if (ffmpeg_image_decode(&image, data, image.cx * 4)) {
tex = gs_create_texture(image.cx, image.cy,
convert_format(image.format),
1, (const uint8_t**)&data, 0);
}
ffmpeg_image_free(&image);
free(data);
}
return tex;
}
