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emulators/emu64/files/patch-ffmpeg6

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From e09e645a88f37fa2a81d754cb9c86c4a584941a1 Mon Sep 17 00:00:00 2001
From: Felix Palmen <felix@palmen-it.de>
Date: Mon, 20 Mar 2023 09:42:43 +0100
Subject: [PATCH] Fix build with ffmpeg 6
This doesn't attempt to replace deprecated functions, it only replaces
functions that are gone (avcodec_encode_[audio|video]2) with
straight-forward replacement code.
It fixes the build with the latest 6.0 release and still builds fine
with ffmpeg 4.4
--- src/video_capture_class.cpp.orig 2021-07-08 16:55:15 UTC
+++ src/video_capture_class.cpp
@@ -87,7 +87,9 @@ bool VideoCaptureClass::StartCapture(const char *filen
int ret;
+#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(58, 9, 100)
av_register_all();
+#endif
//
avformat_alloc_output_context2(&format_ctx, nullptr, nullptr, filename);
@@ -267,7 +269,7 @@ int VideoCaptureClass::GetRecordedFrameCount()
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-void VideoCaptureClass::AddStream(OutputStream *ost, AVFormatContext *oc, AVCodec **codec, enum AVCodecID codec_id)
+void VideoCaptureClass::AddStream(OutputStream *ost, AVFormatContext *oc, const AVCodec **codec, enum AVCodecID codec_id)
{
AVCodecContext *c;
int i;
@@ -363,7 +365,7 @@ void VideoCaptureClass::CloseStream(OutputStream *ost)
swr_free(&ost->swr_ctx);
}
-bool VideoCaptureClass::OpenVideo(AVCodec *codec, OutputStream *ost, AVDictionary *opt_arg)
+bool VideoCaptureClass::OpenVideo(const AVCodec *codec, OutputStream *ost, AVDictionary *opt_arg)
{
int ret;
AVCodecContext *c = ost->enc;
@@ -431,7 +433,7 @@ AVFrame* VideoCaptureClass::AllocPicture(enum AVPixelF
return picture;
}
-bool VideoCaptureClass::OpenAudio(AVCodec *codec, OutputStream *ost, AVDictionary *opt_arg)
+bool VideoCaptureClass::OpenAudio(const AVCodec *codec, OutputStream *ost, AVDictionary *opt_arg)
{
AVCodecContext *c;
int nb_samples;
@@ -532,7 +534,10 @@ int VideoCaptureClass::WriteVideoFrame(AVFormatContext
av_init_packet(&pkt);
/* encode the image */
- ret = avcodec_encode_video2(c, &pkt, frame, &got_packet);
+ ret = avcodec_receive_packet(c, &pkt);
+ if (ret == 0) got_packet = 1;
+ if (ret == AVERROR(EAGAIN)) ret = 0;
+ if (ret == 0) ret = avcodec_send_frame(c, frame);
if (ret < 0)
{
char err_msg[AV_ERROR_MAX_STRING_SIZE];
@@ -562,7 +567,7 @@ int VideoCaptureClass::WriteAudioFrame(AVFormatContext
AVPacket pkt = {}; // data and size must be 0;
AVFrame *frame;
int64_t ret;
- int got_packet;
+ int got_packet = 0;
int64_t dst_nb_samples;
av_init_packet(&pkt);
c = ost->enc;
@@ -595,7 +600,10 @@ int VideoCaptureClass::WriteAudioFrame(AVFormatContext
frame->pts = av_rescale_q(ost->samples_count, AVRational{1, c->sample_rate}, c->time_base);
ost->samples_count += dst_nb_samples;
}
- ret = avcodec_encode_audio2(c, &pkt, frame, &got_packet);
+ ret = avcodec_receive_packet(c, &pkt);
+ if (ret == 0) got_packet = 1;
+ if (ret == AVERROR(EAGAIN)) ret = 0;
+ if (ret == 0) ret = avcodec_send_frame(c, frame);
if (ret < 0)
{
--- src/video_capture_class.h.orig 2021-07-08 16:55:15 UTC
+++ src/video_capture_class.h
@@ -31,6 +31,7 @@ using namespace std;
extern "C"
{
+ #include <libavcodec/avcodec.h>
#include <libavutil/avassert.h>
#include <libavutil/channel_layout.h>
#include <libavutil/opt.h>
@@ -84,11 +85,11 @@ class VideoCaptureClass (public)
bool mutex_01;
private:
- void AddStream(OutputStream *ost, AVFormatContext *oc, AVCodec **codec, enum AVCodecID codec_id);
+ void AddStream(OutputStream *ost, AVFormatContext *oc, const AVCodec **codec, enum AVCodecID codec_id);
void CloseStream(OutputStream *ost);
- bool OpenVideo(AVCodec *codec, OutputStream *ost, AVDictionary *opt_arg);
+ bool OpenVideo(const AVCodec *codec, OutputStream *ost, AVDictionary *opt_arg);
AVFrame* AllocPicture(enum AVPixelFormat pix_fmt, int width, int height);
- bool OpenAudio(AVCodec *codec, OutputStream *ost, AVDictionary *opt_arg);
+ bool OpenAudio(const AVCodec *codec, OutputStream *ost, AVDictionary *opt_arg);
AVFrame* AllocAudioFrame(enum AVSampleFormat sample_fmt, uint64_t channel_layout, int sample_rate, int nb_samples);
int WriteFrame(AVFormatContext *fmt_ctx, const AVRational *time_base, AVStream *st, AVPacket *pkt);
@@ -110,9 +111,9 @@ class VideoCaptureClass (public)
int video_bitrate, audio_bitrate;
- AVOutputFormat *output_format;
+ const AVOutputFormat *output_format;
OutputStream audio_stream;
- AVCodec *video_codec, *audio_codec;
+ const AVCodec *video_codec, *audio_codec;
AVDictionary *options;
uint8_t* source_video_data;