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Fix for lavc audio provider to prevent it from crashing if it cannot load the file (was causing video playback to crash if no audio was loaded) 

Originally committed to SVN as r963.
This commit is contained in:
Rodrigo Braz Monteiro 2007-03-29 21:05:22 +00:00
parent bc1897049b
commit 0dd4f96757
2 changed files with 74 additions and 68 deletions
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8
aegisub/audio_provider_lavc.cpp
View File

@ -110,11 +110,15 @@ LAVCAudioProvider::LAVCAudioProvider(wxString _filename)
break; break;
} }
} }
if (audStream == -1) if (audStream == -1) {
codecContext = NULL;
throw _T("Could not find an audio stream"); throw _T("Could not find an audio stream");
}
AVCodec *codec = avcodec_find_decoder(codecContext->codec_id); AVCodec *codec = avcodec_find_decoder(codecContext->codec_id);
if (!codec) if (!codec) {
codecContext = NULL;
throw _T("Could not find a suitable audio decoder"); throw _T("Could not find a suitable audio decoder");
}
if (avcodec_open(codecContext, codec) < 0) if (avcodec_open(codecContext, codec) < 0)
throw _T("Failed to open audio decoder"); throw _T("Failed to open audio decoder");

134
aegisub/video_provider_lavc.cpp
View File

@ -227,72 +227,74 @@ bool LAVCVideoProvider::GetNextFrame() {
///////////////////////////////// /////////////////////////////////
//// Convert AVFrame to wxBitmap //// Convert AVFrame to wxBitmap
//wxBitmap LAVCVideoProvider::AVFrameToWX(AVFrame *source, int n) { /*
// // Get sizes wxBitmap LAVCVideoProvider::AVFrameToWX(AVFrame *source, int n) {
// int w = codecContext->width; // Get sizes
// int h = codecContext->height; int w = codecContext->width;
////#ifdef __WINDOWS__ int h = codecContext->height;
//// PixelFormat format = PIX_FMT_RGBA32; //#ifdef __WINDOWS__
////#else // PixelFormat format = PIX_FMT_RGBA32;
// PixelFormat format = PIX_FMT_RGB24; //#else
////#endif PixelFormat format = PIX_FMT_RGB24;
// unsigned int size1 = avpicture_get_size(codecContext->pix_fmt,display_w,display_h); //#endif
// unsigned int size2 = avpicture_get_size(format,display_w,display_h); unsigned int size1 = avpicture_get_size(codecContext->pix_fmt,display_w,display_h);
// unsigned int size2 = avpicture_get_size(format,display_w,display_h);
// // Prepare buffers
// if (!buffer1 || buffer1Size != size1) { // Prepare buffers
// if (buffer1) delete buffer1; if (!buffer1 || buffer1Size != size1) {
// buffer1 = new uint8_t[size1]; if (buffer1) delete buffer1;
// buffer1Size = size1; buffer1 = new uint8_t[size1];
// } buffer1Size = size1;
// if (!buffer2 || buffer2Size != size2) { }
// if (buffer2) delete buffer2; if (!buffer2 || buffer2Size != size2) {
// buffer2 = new uint8_t[size2]; if (buffer2) delete buffer2;
// buffer2Size = size2; buffer2 = new uint8_t[size2];
// } buffer2Size = size2;
// }
// // Resize
// AVFrame *resized; // Resize
// bool resize = w != display_w || h != display_h; AVFrame *resized;
// if (resize) { bool resize = w != display_w || h != display_h;
// // Allocate if (resize) {
// unsigned int resSize = avpicture_get_size(codecContext->pix_fmt,display_w,display_h); // Allocate
// resized = avcodec_alloc_frame(); unsigned int resSize = avpicture_get_size(codecContext->pix_fmt,display_w,display_h);
// avpicture_fill((AVPicture*) resized, buffer1, codecContext->pix_fmt, display_w, display_h); resized = avcodec_alloc_frame();
// avpicture_fill((AVPicture*) resized, buffer1, codecContext->pix_fmt, display_w, display_h);
// // Resize
// ImgReSampleContext *resampleContext = img_resample_init(display_w,display_h,w,h); // Resize
// img_resample(resampleContext,(AVPicture*) resized,(AVPicture*) source); ImgReSampleContext *resampleContext = img_resample_init(display_w,display_h,w,h);
// img_resample_close(resampleContext); img_resample(resampleContext,(AVPicture*) resized,(AVPicture*) source);
// img_resample_close(resampleContext);
// // Set new w/h
// w = display_w; // Set new w/h
// h = display_h; w = display_w;
// } h = display_h;
// else resized = source; }
// else resized = source;
// // Allocate RGB32 buffer
// AVFrame *frameRGB = avcodec_alloc_frame(); // Allocate RGB32 buffer
// avpicture_fill((AVPicture*) frameRGB, buffer2, format, w, h); AVFrame *frameRGB = avcodec_alloc_frame();
// avpicture_fill((AVPicture*) frameRGB, buffer2, format, w, h);
// // Convert to RGB32
// img_convert((AVPicture*) frameRGB, format, (AVPicture*) resized, codecContext->pix_fmt, w, h); // Convert to RGB32
// img_convert((AVPicture*) frameRGB, format, (AVPicture*) resized, codecContext->pix_fmt, w, h);
// // Convert to wxBitmap
// wxImage img(w, h, false); // Convert to wxBitmap
// unsigned char *data = (unsigned char *)malloc(w * h * 3); wxImage img(w, h, false);
// memcpy(data, frameRGB->data[0], w * h * 3); unsigned char *data = (unsigned char *)malloc(w * h * 3);
// img.SetData(data); memcpy(data, frameRGB->data[0], w * h * 3);
// if (overlay) img.SetData(data);
// overlay->Render(img, VFR_Input.GetTimeAtFrame(n)); if (overlay)
// overlay->Render(img, VFR_Input.GetTimeAtFrame(n));
// wxBitmap bmp(img);
// wxBitmap bmp(img);
// av_free(frameRGB);
// if (resized != source) av_free(frameRGB);
// av_free(resized); if (resized != source)
// return bmp; av_free(resized);
//} return bmp;
}
*/
///////////// /////////////