From b120f82f9809b98231188daacb94f22a9e69187a Mon Sep 17 00:00:00 2001
From: Gregor Riepl <onitake@gmail.com>
Date: Thu, 8 Aug 2024 23:56:16 +0200
Subject: [PATCH] Replace deprecated APIs when compiling against newer FFmpeg

--- a/module/ffmedia.c
+++ b/module/ffmedia.c
@@ -71,7 +71,11 @@ static int rwops_read(void *opaque, uint8_t *buf, int buf_size) {
 
 }
 
+#if (LIBAVFORMAT_VERSION_MAJOR < 61)
 static int rwops_write(void *opaque, uint8_t *buf, int buf_size) {
+#else
+static int rwops_write(void *opaque, const uint8_t *buf, int buf_size) {
+#endif
     printf("Writing to an SDL_rwops is a really bad idea.\n");
     return -1;
 }
@@ -690,9 +694,14 @@ static void decode_audio(MediaState *ms) {
 			}
 
             converted_frame->sample_rate = audio_sample_rate;
+#if (LIBAVUTIL_VERSION_MAJOR < 59)
             converted_frame->channel_layout = AV_CH_LAYOUT_STEREO;
+#else
+            converted_frame->ch_layout = (AVChannelLayout) AV_CHANNEL_LAYOUT_STEREO;
+#endif
             converted_frame->format = AV_SAMPLE_FMT_S16;
 
+#if (LIBAVUTIL_VERSION_MAJOR < 59)
 			if (!ms->audio_decode_frame->channel_layout) {
 				ms->audio_decode_frame->channel_layout = av_get_default_channel_layout(ms->audio_decode_frame->channels);
 
@@ -711,6 +720,26 @@ static void decode_audio(MediaState *ms) {
 				    swr_set_matrix(ms->swr, stereo_matrix, 1);
 				}
 			}
+#else
+			if (ms->audio_decode_frame->ch_layout.order == AV_CHANNEL_ORDER_UNSPEC) {
+				av_channel_layout_default(&ms->audio_decode_frame->ch_layout, ms->audio_decode_frame->ch_layout.nb_channels);
+
+				if (audio_equal_mono && (ms->audio_decode_frame->ch_layout.nb_channels == 1)) {
+				    swr_alloc_set_opts2(
+                        &ms->swr,
+                        &converted_frame->ch_layout,
+                        converted_frame->format,
+                        converted_frame->sample_rate,
+                        &ms->audio_decode_frame->ch_layout,
+                        ms->audio_decode_frame->format,
+                        ms->audio_decode_frame->sample_rate,
+                        0,
+                        NULL);
+
+				    swr_set_matrix(ms->swr, stereo_matrix, 1);
+				}
+			}
+#endif
 
 			if(swr_convert_frame(ms->swr, converted_frame, ms->audio_decode_frame)) {
 				av_frame_free(&converted_frame);
@@ -1159,7 +1188,11 @@ static int decode_thread(void *arg) {
 
 	// Compute the number of samples we need to play back.
 	if (ms->audio_duration < 0) {
+#if (LIBAVFORMAT_VERSION_MAJOR < 62)
 		if (av_fmt_ctx_get_duration_estimation_method(ctx) != AVFMT_DURATION_FROM_BITRATE) {
+#else
+		if (ctx->duration_estimation_method != AVFMT_DURATION_FROM_BITRATE) {
+#endif
 
 			long long duration = ((long long) ctx->duration) * audio_sample_rate;
 			ms->audio_duration = (unsigned int) (duration /  AV_TIME_BASE);
@@ -1319,7 +1352,11 @@ static int decode_sync_start(void *arg) {
 
 	// Compute the number of samples we need to play back.
 	if (ms->audio_duration < 0) {
+#if (LIBAVFORMAT_VERSION_MAJOR < 62)
 		if (av_fmt_ctx_get_duration_estimation_method(ctx) != AVFMT_DURATION_FROM_BITRATE) {
+#else
+		if (ctx->duration_estimation_method != AVFMT_DURATION_FROM_BITRATE) {
+#endif
 
 			long long duration = ((long long) ctx->duration) * audio_sample_rate;
 			ms->audio_duration = (unsigned int) (duration /  AV_TIME_BASE);