Hello,

I probably crafted a patch, but my ffmpeg knowledge is zero, so help is 
appreciated

Attached the patch.

G.


On Tue, 1 Feb 2022 23:38:47 +0100 Sebastian Ramacher <sramac...@debian.org> 
wrote:
Source: hedgewars
Version: 1.0.0-14
Severity: important
X-Debbugs-Cc: sramac...@debian.org
Tags: sid bookworm ftbfs
Usertags: ffmpeg5.0

hedgewars FTBFS with ffmpeg 5.0 in experimental:

[  6%] Generating hedgewars_it.qm
cd /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/share/hedgewars/Data/Locale && /usr/lib/qt5/bin/lrelease 
/<<PKGBUILDDIR>>/share/hedgewars/Data/Locale/hedgewars_it.ts -qm 
/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/share/hedgewars/Data/Locale/hedgewars_it.qm
Updating 
'/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/share/hedgewars/Data/Locale/hedgewars_gl.qm'...
    Generated 223 translation(s) (177 finished and 46 unfinished)
    Ignored 910 untranslated source text(s)
Updating 
'/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/share/hedgewars/Data/Locale/hedgewars_hu.qm'...
    Generated 1181 translation(s) (1181 finished and 0 unfinished)
Updating 
'/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/share/hedgewars/Data/Locale/hedgewars_it.qm'...
    Generated 1133 translation(s) (1133 finished and 0 unfinished)
/<<PKGBUILDDIR>>/hedgewars/avwrapper/avwrapper.c: In function ‘AddAudioStream’:
/<<PKGBUILDDIR>>/hedgewars/avwrapper/avwrapper.c:174:26: error: ‘AVStream’ has 
no member named ‘codec’
  174 |     g_pAudio = g_pAStream->codec;
      |                          ^~
/<<PKGBUILDDIR>>/hedgewars/avwrapper/avwrapper.c:176:5: warning: implicit 
declaration of function ‘avcodec_get_context_defaults3’ [-Wimplicit-function-declaration]
  176 |     avcodec_get_context_defaults3(g_pAudio, g_pACodec);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/<<PKGBUILDDIR>>/hedgewars/avwrapper/avwrapper.c: In function ‘WriteAudioFrame’:
/<<PKGBUILDDIR>>/hedgewars/avwrapper/avwrapper.c:230:5: warning: 
‘av_init_packet’ is deprecated [-Wdeprecated-declarations]
  230 |     av_init_packet(&Packet);
      |     ^~~~~~~~~~~~~~
In file included from /usr/include/x86_64-linux-gnu/libavcodec/avcodec.h:45,
                 from /<<PKGBUILDDIR>>/hedgewars/avwrapper/avwrapper.c:25:
/usr/include/x86_64-linux-gnu/libavcodec/packet.h:506:6: note: declared here
  506 | void av_init_packet(AVPacket *pkt);
      |      ^~~~~~~~~~~~~~
/<<PKGBUILDDIR>>/hedgewars/avwrapper/avwrapper.c:247:9: warning: implicit 
declaration of function ‘avcodec_encode_audio2’; did you mean ‘avcodec_encode_subtitle’? 
[-Wimplicit-function-declaration]
  247 |     if (avcodec_encode_audio2(g_pAudio, &Packet, pFrame, &got_packet) 
!= 0)
      |         ^~~~~~~~~~~~~~~~~~~~~
      |         avcodec_encode_subtitle
/<<PKGBUILDDIR>>/hedgewars/avwrapper/avwrapper.c: In function ‘AddVideoStream’:
/<<PKGBUILDDIR>>/hedgewars/avwrapper/avwrapper.c:282:26: error: ‘AVStream’ has 
no member named ‘codec’
  282 |     g_pVideo = g_pVStream->codec;
      |                          ^~
/<<PKGBUILDDIR>>/hedgewars/avwrapper/avwrapper.c: In function ‘WriteFrame’:
/<<PKGBUILDDIR>>/hedgewars/avwrapper/avwrapper.c:384:5: warning: 
‘av_init_packet’ is deprecated [-Wdeprecated-declarations]
  384 |     av_init_packet(&Packet);
      |     ^~~~~~~~~~~~~~
In file included from /usr/include/x86_64-linux-gnu/libavcodec/avcodec.h:45,
                 from /<<PKGBUILDDIR>>/hedgewars/avwrapper/avwrapper.c:25:
/usr/include/x86_64-linux-gnu/libavcodec/packet.h:506:6: note: declared here
  506 | void av_init_packet(AVPacket *pkt);
      |      ^~~~~~~~~~~~~~
/<<PKGBUILDDIR>>/hedgewars/avwrapper/avwrapper.c:408:13: warning: implicit 
declaration of function ‘avcodec_encode_video2’; did you mean ‘avcodec_encode_subtitle’? 
[-Wimplicit-function-declaration]
  408 |         if (avcodec_encode_video2(g_pVideo, &Packet, pFrame, &got_packet) 
< 0)
      |             ^~~~~~~~~~~~~~~~~~~~~
      |             avcodec_encode_subtitle
/<<PKGBUILDDIR>>/hedgewars/avwrapper/avwrapper.c: In function ‘AVWrapper_Init’:
/<<PKGBUILDDIR>>/hedgewars/avwrapper/avwrapper.c:503:5: warning: implicit 
declaration of function ‘av_register_all’ [-Wimplicit-function-declaration]
  503 |     av_register_all();
      |     ^~~~~~~~~~~~~~~
/<<PKGBUILDDIR>>/hedgewars/avwrapper/avwrapper.c:506:15: warning: assignment 
discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
Description: Add compatibility with new ffmpeg 5.0, based on patch available here:
https://github.com/opencv/opencv/issues/21455

Author: Gianfranco Costamagna <locutusofb...@debian.org>
Origin: other
Bug-Debian: https://bugs.debian.org/1004825
Forwarded: irc
Last-Update: 2022-02-03

Index: hedgewars/hedgewars/avwrapper/avwrapper.c
===================================================================
--- hedgewars.orig/hedgewars/avwrapper/avwrapper.c
+++ hedgewars/hedgewars/avwrapper/avwrapper.c
@@ -27,6 +27,10 @@
 #include "libavutil/avutil.h"
 #include "libavutil/mathematics.h"
 
+#if LIBAVCODEC_VERSION_MAJOR >= 59
+#include <libavcodec/bsf.h>
+#endif
+
 #if (defined _MSC_VER)
 #define AVWRAP_DECL __declspec(dllexport)
 #elif ((__GNUC__ >= 3) && (!__EMX__) && (!sun))
@@ -171,7 +175,13 @@
     }
     g_pAStream->id = 1;
 
+#if LIBAVCODEC_VERSION_MAJOR < 59
     g_pAudio = g_pAStream->codec;
+#else
+    const AVCodec *audio_st_codec = avcodec_find_decoder(g_pAStream->codecpar->codec_id);
+    g_pAudio = avcodec_alloc_context3(audio_st_codec);
+    avcodec_parameters_to_context(g_pAudio, g_pAStream->codecpar);
+#endif
 
     avcodec_get_context_defaults3(g_pAudio, g_pACodec);
     g_pAudio->codec_id = g_pACodec->id;
@@ -279,7 +289,13 @@
     if (!g_pVStream)
         return FatalError("Could not allocate video stream");
 
+#if LIBAVCODEC_VERSION_MAJOR < 59
     g_pVideo = g_pVStream->codec;
+#else
+    const AVCodec *video_st_codec = avcodec_find_decoder(g_pVStream->codecpar->codec_id);
+    g_pVideo = avcodec_alloc_context3(video_st_codec);
+    avcodec_parameters_to_context(g_pVideo, g_pVStream->codecpar);
+#endif
 
     avcodec_get_context_defaults3(g_pVideo, g_pVCodec);
     g_pVideo->codec_id = g_pVCodec->id;
@@ -499,8 +515,10 @@
     g_Framerate.den = FramerateDen;
     g_VQuality = VQuality;
 
+#if LIBAVCODEC_VERSION_MAJOR < 58
     // initialize libav and register all codecs and formats
     av_register_all();
+#endif
 
     // find format
     g_pFormat = av_guess_format(pFormatName, NULL, NULL);
@@ -522,8 +540,11 @@
     strncpy(ext, g_pFormat->extensions, 16);
     ext[15] = 0;
     ext[strcspn(ext,",")] = 0;
+#if LIBAVCODEC_VERSION_MAJOR < 59
     snprintf(g_pContainer->filename, sizeof(g_pContainer->filename), "%s.%s", pFilename, ext);
-
+#else
+    snprintf(g_pContainer->url, sizeof(g_pContainer->url), "%s.%s", pFilename, ext);
+#endif
     // find codecs
     g_pVCodec = avcodec_find_encoder_by_name(pVCodecName);
     g_pACodec = avcodec_find_encoder_by_name(pACodecName);
@@ -560,13 +581,22 @@
         return FatalError("No video, no audio, aborting...");
 
     // write format info to log
+#if LIBAVCODEC_VERSION_MAJOR < 59
     av_dump_format(g_pContainer, 0, g_pContainer->filename, 1);
+#else
+    av_dump_format(g_pContainer, 0, g_pContainer->url, 1);
+#endif
 
     // open the output file, if needed
     if (!(g_pFormat->flags & AVFMT_NOFILE))
     {
+#if LIBAVCODEC_VERSION_MAJOR < 59
         if (avio_open(&g_pContainer->pb, g_pContainer->filename, AVIO_FLAG_WRITE) < 0)
             return FatalError("Could not open output file (%s)", g_pContainer->filename);
+#else
+        if (avio_open(&g_pContainer->pb, g_pContainer->url, AVIO_FLAG_WRITE) < 0)
+            return FatalError("Could not open output file (%s)", g_pContainer->url);
+#endif
     }
 
     g_pVFrame->pts = -1;
Index: hedgewars/QTfrontend/util/LibavInteraction.cpp
===================================================================
--- hedgewars.orig/QTfrontend/util/LibavInteraction.cpp
+++ hedgewars/QTfrontend/util/LibavInteraction.cpp
@@ -73,7 +73,11 @@
 QMap<QString,Format> formats;
 
 // test if given format supports given codec
+#if LIBAVCODEC_VERSION_MAJOR < 59
 bool FormatQueryCodec(AVOutputFormat *ofmt, enum AVCodecID codec_id)
+#else
+bool FormatQueryCodec(const AVOutputFormat *ofmt, enum AVCodecID codec_id)
+#endif
 {
 #if LIBAVFORMAT_VERSION_MAJOR >= 54
     return avformat_query_codec(ofmt, codec_id, FF_COMPLIANCE_NORMAL) == 1;
@@ -86,12 +90,19 @@
 
 LibavInteraction::LibavInteraction() : QObject()
 {
+#if LIBAVCODEC_VERSION_MAJOR < 59
     // initialize libav and register all codecs and formats
     av_register_all();
+#endif
 
     // get list of all codecs
+#if LIBAVCODEC_VERSION_MAJOR < 59
     AVCodec* pCodec = NULL;
     while ((pCodec = av_codec_next(pCodec)))
+#else
+    const AVCodec* pCodec = NULL;
+    while ((pCodec = av_codec_iterate((void**)&pCodec)))
+#endif
     {
         if (!av_codec_is_encoder(pCodec))
             continue;
@@ -179,8 +190,13 @@
     }
 
     // get list of all formats
+#if LIBAVCODEC_VERSION_MAJOR < 59
     AVOutputFormat* pFormat = NULL;
     while ((pFormat = av_oformat_next(pFormat)))
+#else
+    const AVOutputFormat* pFormat = NULL;
+    while ((pFormat = av_muxer_iterate((void**)&pFormat)))
+#endif
     {
         if (!pFormat->extensions)
             continue;
@@ -296,12 +312,22 @@
         AVStream* pStream = pContext->streams[i];
         if (!pStream)
             continue;
+#if LIBAVCODEC_VERSION_MAJOR < 59
         AVCodecContext* pCodec = pContext->streams[i]->codec;
+#else
+    const AVCodec *st_codec = avcodec_find_decoder(pContext->streams[i]->codecpar->codec_id);
+    AVCodecContext* pCodec = avcodec_alloc_context3(st_codec);
+    avcodec_parameters_to_context(pCodec, pContext->streams[i]->codecpar);
+#endif
         if (!pCodec)
             continue;
 
 
+#if LIBAVCODEC_VERSION_MAJOR < 59
         AVCodec* pDecoder = avcodec_find_decoder(pCodec->codec_id);
+#else
+        const AVCodec* pDecoder = avcodec_find_decoder(pCodec->codec_id);
+#endif
         QString decoderName = pDecoder ? pDecoder->name : tr("unknown");
         if (pCodec->codec_type == AVMEDIA_TYPE_VIDEO)
         {

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