avformat/mux: return a pointer to the packet in ff_interleaved_peek()

And make it const, so the caller doesn't attempt to change it.
ff_get_muxer_ts_offset() should be used to get the muxer timestamp offset.

Signed-off-by: James Almer <jamrial@gmail.com>

1 files changed, 3 insertions, 17 deletions

diff --git a/libavformat/mux.c b/libavformat/mux.c
index ae46844c66..062ba8d789 100644
--- a/libavformat/mux.c
+++ b/libavformat/mux.c
@@ -1062,30 +1062,16 @@ int ff_get_muxer_ts_offset(AVFormatContext *s, int stream_index, int64_t *offset
     return 0;
 }
 
-int ff_interleaved_peek(AVFormatContext *s, int stream,
-                        AVPacket *pkt, int add_offset)
+const AVPacket *ff_interleaved_peek(AVFormatContext *s, int stream)
 {
     AVPacketList *pktl = s->internal->packet_buffer;
     while (pktl) {
         if (pktl->pkt.stream_index == stream) {
-            *pkt = pktl->pkt;
-            if (add_offset) {
-                AVStream *st = s->streams[pkt->stream_index];
-                int64_t offset = st->internal->mux_ts_offset;
-
-                if (s->output_ts_offset)
-                    offset += av_rescale_q(s->output_ts_offset, AV_TIME_BASE_Q, st->time_base);
-
-                if (pkt->dts != AV_NOPTS_VALUE)
-                    pkt->dts += offset;
-                if (pkt->pts != AV_NOPTS_VALUE)
-                    pkt->pts += offset;
-            }
-            return 0;
+            return &pktl->pkt;
         }
         pktl = pktl->next;
     }
-    return AVERROR(ENOENT);
+    return NULL;
 }
 
 /**