large changes to bitmap structure

1 files changed, 0 insertions, 323 deletions

diff --git a/video.cpp b/video.cpp
deleted file mode 100644
index bb3e17e..0000000
--- a/video.cpp
+++ /dev/null
@@ -1,323 +0,0 @@
-// workaround to make libav error printing work
-
-#ifdef av_err2str
-#undef av_err2str
-#include <string>
-av_always_inline std::string av_err2string(int errnum) {
-    char str[AV_ERROR_MAX_STRING_SIZE];
-    return av_make_error_string(str, AV_ERROR_MAX_STRING_SIZE, errnum);
-}
-#define av_err2str(err) av_err2string(err).c_str()
-#endif  // av_err2str
-
-internal bool32
-AV_TryFrame(av_info *AV, int32 *err)
-{
-    *err = av_read_frame(AV->FileFormatContext, AV->VideoPacket);
-    if (*err >= 0 && AV->VideoPacket->stream_index != AV->StreamIndex) {
-        av_packet_unref(AV->VideoPacket);
-        return 0;
-    }
-
-    if (*err < 0)
-        *err = avcodec_send_packet(AV->VideoCodecContext, AV->VideoPacket);
-    else {
-        *err = avcodec_send_packet(AV->VideoCodecContext, AV->VideoPacket);
-    }
-    av_packet_unref(AV->VideoPacket);
-
-    if (*err < 0)
-    {
-        fprintf(stderr, "Libav *error: (%s)\n", av_err2str(*err));
-        Assert(0);
-    }
-
-    while (*err >= 0) {
-        *err = avcodec_receive_frame(AV->VideoCodecContext, AV->VideoFrame);
-        if (*err == AVERROR_EOF) {
-        } else if (*err == AVERROR(EAGAIN)) {
-            *err = 0;
-            break;
-        } else if (*err < 0) {
-            Assert(0);
-        }
-        return 1;
-    }
-    return 0;
-}
-
-internal bool32
-TestAV(char *filename)
-{
-    int32 err = 0;
-
-    // enum AVHWDeviceType type;
-    // while((type = av_hwdevice_iterate_types(type)) != AV_HWDEVICE_TYPE_NONE)
-    //     printf("%s\n", av_hwdevice_get_type_name(type));
-
-    AVFormatContext *temp = avformat_alloc_context();
-    err = avformat_open_input(&temp, filename, NULL, NULL);;
-
-    if (err < 0) {
-            fprintf(stderr, "Libav error: (%s)\n", av_err2str(err));
-            avformat_free_context(temp);
-            return 0;
-    }
-
-    err = avformat_find_stream_info(temp,  NULL);
-
-    if (err < 0) {
-            fprintf(stderr, "Libav error: (%s)\n", av_err2str(err));
-            avformat_free_context(temp);
-            return 0;
-    }
-
-    avformat_free_context(temp);
-
-    return 1;
-}
-
-internal void
-InitAV(char *filename, av_info *AV)
-{
-    int32 err = 0;
-
-    // enum AVHWDeviceType type;
-    // while((type = av_hwdevice_iterate_types(type)) != AV_HWDEVICE_TYPE_NONE)
-    //     printf("%s\n", av_hwdevice_get_type_name(type));
-
-    AV->FileFormatContext = avformat_alloc_context();
-    err = avformat_open_input(&AV->FileFormatContext, filename, NULL, NULL);;
-
-    if (err < 0) {
-            fprintf(stderr, "Libav error: (%s)\n", av_err2str(err));
-    }
-
-    err = avformat_find_stream_info(AV->FileFormatContext,  NULL);
-
-    if (err < 0) {
-            fprintf(stderr, "Libav error: (%s)\n", av_err2str(err));
-    }
-
-    for (int i = 0; i < AV->FileFormatContext->nb_streams; i++)
-    {
-        AVCodecParameters *LocalCodecParameters = NULL;
-        LocalCodecParameters = AV->FileFormatContext->streams[i]->codecpar;
-        if (LocalCodecParameters->codec_type == AVMEDIA_TYPE_VIDEO) {
-            AV->VideoCodecParameters = LocalCodecParameters;
-            AV->VideoStream =  AV->FileFormatContext->streams[i];
-            AV->StreamIndex = i;
-            break;
-        }
-    }
-
-    if (!AV->VideoCodecParameters) {
-        printf("Libav error: No video track found.");
-    }
-
-    AV->VideoCodec = avcodec_find_decoder(AV->VideoCodecParameters->codec_id);
-
-    if (!AV->VideoCodec) {
-        printf("Libav error: Video codec could not be identified.");
-    }
-/*
-    int16 codecs = 0;
-    for (;;) {
-        AV->VideoHWConfig = avcodec_get_hw_config(AV->VideoCodec, codecs);
-        if (!AV->VideoHWConfig) {
-            printf("Libav error: Hardware acceleration not found for decoder %s.",
-                    AV->VideoCodec->name);
-            break;
-        }
-        AV->HWPixFormat = AV->VideoHWConfig->pix_fmt;
-        break;
-        // if (AV->VideoHWConfig->methods & AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX &&
-        //     AV->VideoHWConfig->device_type == type) {
-        // }
-        codecs++;
-    }
-*/
-    AV->VideoCodecContext = avcodec_alloc_context3(AV->VideoCodec);
-    if (!AV->VideoCodecContext) {
-        printf("Libav error: Decoder context allocation failed.");
-    }
-    err = avcodec_parameters_to_context(AV->VideoCodecContext, AV->VideoCodecParameters);
-    if (err < 0) {
-            fprintf(stderr, "Libav error: (%s)\n", av_err2str(err));
-    }
-
-    avcodec_open2(AV->VideoCodecContext, AV->VideoCodec, NULL);
-    if (err < 0) {
-            fprintf(stderr, "Libav error: (%s)\n", av_err2str(err));
-    }
-
-    AV->VideoPacket = av_packet_alloc();
-    if (err < 0) {
-            fprintf(stderr, "Libav error: (%s)\n", av_err2str(err));
-    }
-    AV->VideoFrame = av_frame_alloc();
-    if (err < 0) {
-            fprintf(stderr, "Libav error: (%s)\n", av_err2str(err));
-    }
-
-    AV->FPS = (real32)AV->VideoStream->r_frame_rate.num / AV->VideoStream->r_frame_rate.den;
-    AV->IntFPS = (int32)(AV->FPS + 0.5f);
-    AV->LastPTS = -1;
-
-
-    // TODO(fox): This PTS average isn't exact and causes an occasional
-    // frame skip. See libav remarks in forum for more details.
-
-    // TODO(fox): Handle footage under five seconds.
-    int16 TestAmount = 5;
-
-    int16 i = 0;
-    for (;;) {
-        if (AV_TryFrame(AV, &err)) {
-            if (i >= AV->FPS * TestAmount) {
-                AV->AvgPTSPerSecond = (real32)AV->VideoFrame->pts / TestAmount;
-                printf("frame: %i, pts: %li\n", i, AV->VideoFrame->pts);
-                break;
-            }
-            i++;
-            av_frame_unref(AV->VideoFrame);
-        }
-    }
-
-    AV->AvgPTSPerFrame = (real32)AV->AvgPTSPerSecond / AV->IntFPS;
-    printf("Avg PTS per sec: %.06f, Avg PTS per frame: %.06f\n", AV->AvgPTSPerSecond, AV->AvgPTSPerFrame);
-
-    av_seek_frame(AV->FileFormatContext, -1, 0, AVSEEK_FLAG_BACKWARD);
-};
-
-internal void
-Convert4x4Chunk(pixel_buffer *Raster, uint8);
-internal void
-ClearBuffer(pixel_buffer *Raster, void *);
-
-internal int16
-LoadVideoFrame(video_source *Source, memory *Memory, int32 TimelineFrame)
-{
-    av_info *AV = &Source->AV;
-    pixel_buffer *Buffer = &Source->Raster;
-    int32 *CurrentlyRenderedFrame = &Source->VideoCurrentFrame;
-
-    int32 err = 0;
-
-    int p = 0;
-    int i = 0;
-
-    int32 FrameToSeek = TimelineFrame - Source->VideoFrameOffset;
-    if (*CurrentlyRenderedFrame == FrameToSeek || FrameToSeek < 0)
-        return 0;
-
-    // NOTE(fox): The decoder automatically advances to the next frame, so we
-    // don't need to call av_seek_frame under normal playback.
-    // This function only seeks to the nearest "keyframe."
-
-    if (*CurrentlyRenderedFrame != FrameToSeek - 1) {
-        int64 SeekSeconds = (int64)(FrameToSeek / AV->IntFPS * AV_TIME_BASE);
-        av_seek_frame(AV->FileFormatContext, -1, SeekSeconds, AVSEEK_FLAG_BACKWARD);
-        printf("Seek activated\n");
-    } else if (*CurrentlyRenderedFrame < 0) {
-        av_seek_frame(AV->FileFormatContext, -1, 0, AVSEEK_FLAG_BACKWARD);
-    }
-
-    *CurrentlyRenderedFrame = FrameToSeek;
-
-    int64 SeekPTS = (int64)(AV->AvgPTSPerFrame*FrameToSeek + 0.5f);
-
-    while (err >= 0) {
-        if (AV_TryFrame(AV, &err)) {
-
-            // The first frame that gets loaded isn't always the actual
-            // first frame, so we need to check until it's correct.
-            if (FrameToSeek == 0 && AV->VideoFrame->pts != AV->VideoStream->start_time) {
-                av_frame_unref(AV->VideoFrame);
-                printf("NON-START: avg: %li, real pts: %li", SeekPTS, AV->VideoFrame->pts);
-                continue;
-            }
-
-            int64 Difference = AV->VideoFrame->pts - SeekPTS;
-            if (abs(Difference) < AV->AvgPTSPerFrame)
-            {
-                if (AV->LastPTS == -1) {
-                    AV->LastPTS = AV->VideoFrame->pts;
-                    printf("avg: %li, real pts: %li, difference: %li\n", SeekPTS, AV->VideoFrame->pts, Difference);
-                } else {
-                    printf("avg: %li, real pts: %li, difference: %li difference from last pts: %li\n", SeekPTS, AV->VideoFrame->pts, AV->VideoFrame->pts - SeekPTS, AV->VideoFrame->pts - AV->LastPTS);
-                    AV->LastPTS = AV->VideoFrame->pts;
-                }
-
-                uint32 PixelCount = AV->VideoFrame->width*AV->VideoFrame->height;
-                int out_linesize[4] = { Buffer->Pitch, Buffer->Pitch, Buffer->Pitch, Buffer->Pitch };
-                uint8 *dst_data[4] = { (uint8 *)Buffer->OriginalBuffer, (uint8 *)Buffer->OriginalBuffer + PixelCount,
-                                       (uint8 *)Buffer->OriginalBuffer + PixelCount*2, (uint8 *)Buffer->OriginalBuffer + PixelCount*3 };
-
-                // NOTE(fox): This function will be replaced in the future.
-                AV->RGBContext = sws_getContext(AV->VideoFrame->width, AV->VideoFrame->height, (AVPixelFormat)AV->VideoFrame->format,
-                                                AV->VideoFrame->width, AV->VideoFrame->height, AV_PIX_FMT_RGBA, SWS_BILINEAR,
-                                                NULL, NULL, NULL);
-
-                if(!AV->RGBContext) {
-                    printf("Libav error: SwsContext creation failed.");
-                }
-
-                sws_scale(AV->RGBContext, AV->VideoFrame->data, AV->VideoFrame->linesize, 0, AV->VideoFrame->height,
-                          dst_data, out_linesize);
-
-                av_frame_unref(AV->VideoFrame);
-
-                Convert4x4Chunk(Buffer, 0);
-                CopyToBuffer(Buffer, 1);
-                ClearBuffer(Buffer, Buffer->EffectBuffer);
-
-                return 0;
-            }
-            else
-            {
-                // If this gets printed when not seeking, a frame has been skipped!
-                printf("FRAME SKIP: avg: %li, real pts: %li, difference: %li\n", SeekPTS, AV->VideoFrame->pts, Difference);
-            }
-            av_frame_unref(AV->VideoFrame);
-        }
-    }
-    /*
-    for (int p = 0; p < 8000; p++) {
-        av_packet_unref(AV->VideoPacket);
-        int i = 0;
-        while (i < 5)
-        {
-            err = avcodec_send_packet(AV->VideoCodecContext, AV->VideoPacket);
-            if (err < 0)
-            {
-                fprintf(stderr, "Libav error: (%s)\n", av_err2str(err));
-                Assert(0);
-            }
-            err = avcodec_receive_frame(AV->VideoCodecContext, AV->VideoFrame);
-            if (err >= 0) {
-                break;
-            } else if (err < 0) {
-                fprintf(stderr, "Libav error: (%s)\n", av_err2str(err));
-            }
-            i++;
-        }
-    }
-    */
-
-
-    /*
-    uint8 *Test = pFrame->data[0];
-
-    for (int16 Y = 0; Y < Buffer.Height; Y++) {
-        for (int16 X = 0; X < Buffer.Width; X++) {
-                uint8 *Row = (uint8 *)Buffer.OriginalBuffer + Buffer.Pitch*Y;
-                uint32 *Pixel = (uint32 *)Row + X;
-                *Pixel = (uint32)((0xFF << 24) | *Test);
-                Test++;
-        }
-    }
-    */
-
-    return 0;
-}