ffmpeg: remove unnecessary patch

package/ffmpeg/0001-avcodec-omx-Fix-handling-of-fragmented-buffers.patch

@@ -1,66 +0,0 @@
-From e729ce6f24d3bc850c9dfdbd8684d1a54864df2b Mon Sep 17 00:00:00 2001
-From: Dave Stevenson <dave.stevenson@raspberrypi.org>
-Date: Thu, 17 Jan 2019 17:39:34 +0000
-Subject: [PATCH] avcodec/omx: Fix handling of fragmented buffers
-
-See https://trac.ffmpeg.org/ticket/7687
-
-If an encoded frame is returned split over two or more
-IL buffers due to the size, then there is a race between
-whether get_buffer will fail, return NULL, and a truncated
-frame is passed on, or IL will return the remaining part
-of the encoded frame.
-If get_buffer returns NULL, part of the frame is left behind
-in the codec, and will be collected on the next call. That
-then leaves a frame stuck in the codec. Repeat enough times
-and the codec FIFO is full, and the pipeline stalls.
-
-A performance improvement in the Raspberry Pi firmware means
-that the timing has changed, and now frequently drops into the
-case where get_buffer returns NULL.
-
-Add code such that should a buffer be received without
-OMX_BUFFERFLAG_ENDOFFRAME that get_buffer is called with wait
-set, so we wait for the remainder of the frame.
-This code has been made conditional on the Pi build in case
-other IL implementations don't handle ENDOFFRAME correctly.
-
-Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
----
- libavcodec/omx.c | 6 +++++-
- 1 file changed, 5 insertions(+), 1 deletion(-)
-
-diff --git a/libavcodec/omx.c b/libavcodec/omx.c
-index 466e0be..e813362 100644
---- a/libavcodec/omx.c
-+++ b/libavcodec/omx.c
-@@ -739,6 +739,7 @@ static int omx_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
-     int ret = 0;
-     OMX_BUFFERHEADERTYPE* buffer;
-     OMX_ERRORTYPE err;
-+    int had_partial = 0;
- 
-     if (frame) {
-         uint8_t *dst[4];
-@@ -830,7 +831,7 @@ static int omx_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
-         // packet, or get EOS.
-         buffer = get_buffer(&s->output_mutex, &s->output_cond,
-                             &s->num_done_out_buffers, s->done_out_buffers,
--                            !frame);
-+                            !frame || had_partial);
-         if (!buffer)
-             break;
- 
-@@ -865,6 +866,9 @@ static int omx_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
-                     s->output_buf = NULL;
-                     s->output_buf_size = 0;
-                 }
-+#if CONFIG_OMX_RPI
-+                had_partial = 1;
-+#endif
-             } else {
-                 // End of frame, and the caller provided a preallocated frame
-                 if ((ret = ff_alloc_packet2(avctx, pkt, s->output_buf_size + buffer->nFilledLen, 0)) < 0) {
--- 
-2.7.4
-