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From: Steve Lhomme <robux4@ycbcr.xyz>
Date: Mon, 8 Sep 2025 13:55:28 +0200
Subject: avcodec: encoder: remove AV_INPUT_BUFFER_MIN_SIZE usage
It's not supported in FFMpeg 8.0 since 60.40.100.
It used to be used with preallocated packet buffers with
the old encode API, but said API is no more and therefore
there is no reason for this to be public any more.
So deprecate it and use an internal replacement
for the encoders using it as an upper bound for the
size of their headers.
(cherry picked from commit dae7faa0757ee094681c5e7100baca74c007c67c)
---
modules/codec/avcodec/avcommon_compat.h | 3 ---
modules/codec/avcodec/encoder.c | 2 +-
2 files changed, 1 insertion(+), 4 deletions(-)
diff --git a/modules/codec/avcodec/avcommon_compat.h b/modules/codec/avcodec/avcommon_compat.h
index 8ab6910..14aa62c 100644
--- a/modules/codec/avcodec/avcommon_compat.h
+++ b/modules/codec/avcodec/avcommon_compat.h
@@ -75,9 +75,6 @@
#ifndef AV_CODEC_CAP_SMALL_LAST_FRAME
# define AV_CODEC_CAP_SMALL_LAST_FRAME CODEC_CAP_SMALL_LAST_FRAME
#endif
-#ifndef AV_INPUT_BUFFER_MIN_SIZE
-# define AV_INPUT_BUFFER_MIN_SIZE FF_MIN_BUFFER_SIZE
-#endif
#ifndef FF_MAX_B_FRAMES
# define FF_MAX_B_FRAMES 16 // FIXME: remove this
#endif
diff --git a/modules/codec/avcodec/encoder.c b/modules/codec/avcodec/encoder.c
index be53cec..deb61eb 100644
--- a/modules/codec/avcodec/encoder.c
+++ b/modules/codec/avcodec/encoder.c
@@ -1052,7 +1052,7 @@ errmsg:
p_sys->i_sample_bytes = (p_enc->fmt_in.audio.i_bitspersample / 8);
p_sys->i_frame_size = p_context->frame_size > 1 ?
p_context->frame_size :
- AV_INPUT_BUFFER_MIN_SIZE;
+ 16384; // AV_INPUT_BUFFER_MIN_SIZE
p_sys->i_buffer_out = av_samples_get_buffer_size(NULL,
p_enc->fmt_out.audio.i_channels, p_sys->i_frame_size,
p_sys->p_context->sample_fmt, DEFAULT_ALIGN);
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