ffmdec: fix seeking for non indexed files

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

diff --git a/libavformat/ffmdec.c b/libavformat/ffmdec.c
index 0747f8d..42c1466 100644 (file)
--- a/libavformat/ffmdec.c
+++ b/libavformat/ffmdec.c
@@ -461,7 +461,7 @@ static int ffm_seek(AVFormatContext *s, int stream_index, int64_t wanted_pts, in
     av_dlog(s, "wanted_pts=%0.6f\n", wanted_pts / 1000000.0);
     /* find the position using linear interpolation (better than
        dichotomy in typical cases) */
-    if (ffm->write_index < ffm->file_size) {
+    if (ffm->write_index && ffm->write_index < ffm->file_size) {
         if (get_dts(s, FFM_PACKET_SIZE) < wanted_pts) {
             pos_min = FFM_PACKET_SIZE;
             pos_max = ffm->write_index - FFM_PACKET_SIZE;

diff --git a/tests/ref/seek/lavf_ffm b/tests/ref/seek/lavf_ffm
index 46cf764..2218d4f 100644 (file)
--- a/tests/ref/seek/lavf_ffm
+++ b/tests/ref/seek/lavf_ffm
@@ -4,7 +4,7 @@ ret: 0         st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos:   8192 size: 24664
 ret: 0         st:-1 flags:1  ts: 1.894167
 ret: 0         st: 1 flags:1 dts: 0.940408 pts: 0.940408 pos: 376832 size:   209
 ret: 0         st: 0 flags:0  ts: 0.788334
-ret: 0         st: 1 flags:1 dts: 0.783673 pts: 0.783673 pos: 315392 size:   209
+ret: 0         st: 1 flags:1 dts: 0.809796 pts: 0.809796 pos: 327680 size:   209
 ret: 0         st: 0 flags:1  ts:-0.317499
 ret: 0         st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos:   8192 size: 24664
 ret: 0         st: 1 flags:0  ts: 2.576668
@@ -12,7 +12,7 @@ ret: 0         st: 1 flags:1 dts: 0.940408 pts: 0.940408 pos: 376832 size:   209
 ret: 0         st: 1 flags:1  ts: 1.470835
 ret: 0         st: 1 flags:1 dts: 0.940408 pts: 0.940408 pos: 376832 size:   209
 ret: 0         st:-1 flags:0  ts: 0.365002
-ret: 0         st: 1 flags:1 dts: 0.339592 pts: 0.339592 pos: 155648 size:   209
+ret: 0         st: 1 flags:1 dts: 0.365714 pts: 0.365714 pos: 163840 size:   209
 ret: 0         st:-1 flags:1  ts:-0.740831
 ret: 0         st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos:   8192 size: 24664
 ret: 0         st: 0 flags:0  ts: 2.153336
@@ -40,7 +40,7 @@ ret: 0         st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos:   8192 size: 24664
 ret: 0         st:-1 flags:1  ts: 1.989173
 ret: 0         st: 1 flags:1 dts: 0.940408 pts: 0.940408 pos: 376832 size:   209
 ret: 0         st: 0 flags:0  ts: 0.883340
-ret: 0         st: 0 flags:0 dts: 0.880000 pts: 0.920000 pos: 339968 size: 12307
+ret: 0         st: 1 flags:1 dts: 0.888163 pts: 0.888163 pos: 352256 size:   209
 ret: 0         st: 0 flags:1  ts:-0.222493
 ret: 0         st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos:   8192 size: 24664
 ret: 0         st: 1 flags:0  ts: 2.671674
@@ -48,6 +48,6 @@ ret: 0         st: 1 flags:1 dts: 0.940408 pts: 0.940408 pos: 376832 size:   209
 ret: 0         st: 1 flags:1  ts: 1.565841
 ret: 0         st: 1 flags:1 dts: 0.940408 pts: 0.940408 pos: 376832 size:   209
 ret: 0         st:-1 flags:0  ts: 0.460008
-ret: 0         st: 1 flags:1 dts: 0.444082 pts: 0.444082 pos: 204800 size:   209
+ret: 0         st: 1 flags:1 dts: 0.496327 pts: 0.496327 pos: 221184 size:   209
 ret: 0         st:-1 flags:1  ts:-0.645825
 ret: 0         st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos:   8192 size: 24664