flvdec: follow packets backward until a valid last timestamp is found

[ffmpeg] / libavformat / swfenc.c

diff --git a/libavformat/swfenc.c b/libavformat/swfenc.c
index af812d09eb53e3a1c6806c452c5e3f128de088a1..9eb25409559b8576303f3fa3cb59263b3c57fddc 100644 (file)
--- a/libavformat/swfenc.c
+++ b/libavformat/swfenc.c
@@ -21,6 +21,7 @@
  */
 
 #include "libavcodec/put_bits.h"
+#include "libavutil/avassert.h"
 #include "avformat.h"
 #include "swf.h"
 
@@ -56,7 +57,7 @@ static void put_swf_end_tag(AVFormatContext *s)
         avio_wl16(pb, (tag << 6) | 0x3f);
         avio_wl32(pb, tag_len - 4);
     } else {
-        assert(tag_len < 0x3f);
+        av_assert0(tag_len < 0x3f);
         avio_wl16(pb, (tag << 6) | tag_len);
     }
     avio_seek(pb, pos, SEEK_SET);
@@ -187,10 +188,6 @@ static int swf_write_header(AVFormatContext *s)
         AVCodecContext *enc = s->streams[i]->codec;
         if (enc->codec_type == AVMEDIA_TYPE_AUDIO) {
             if (enc->codec_id == CODEC_ID_MP3) {
-                if (!enc->frame_size) {
-                    av_log(s, AV_LOG_ERROR, "audio frame size not set\n");
-                    return -1;
-                }
                 swf->audio_enc = enc;
                 swf->audio_fifo= av_fifo_alloc(AUDIO_FIFO_SIZE);
                 if (!swf->audio_fifo)
@@ -452,7 +449,7 @@ static int swf_write_audio(AVFormatContext *s,
     }
 
     av_fifo_generic_write(swf->audio_fifo, buf, size, NULL);
-    swf->sound_samples += enc->frame_size;
+    swf->sound_samples += av_get_audio_frame_duration(enc, size);
 
     /* if audio only stream make sure we add swf frames */
     if (!swf->video_enc)
@@ -508,7 +505,7 @@ static int swf_write_trailer(AVFormatContext *s)
 #if CONFIG_SWF_MUXER
 AVOutputFormat ff_swf_muxer = {
     .name              = "swf",
-    .long_name         = NULL_IF_CONFIG_SMALL("Flash format"),
+    .long_name         = NULL_IF_CONFIG_SMALL("SWF (ShockWave Flash)"),
     .mime_type         = "application/x-shockwave-flash",
     .extensions        = "swf",
     .priv_data_size    = sizeof(SWFContext),
@@ -517,12 +514,13 @@ AVOutputFormat ff_swf_muxer = {
     .write_header      = swf_write_header,
     .write_packet      = swf_write_packet,
     .write_trailer     = swf_write_trailer,
+    .flags             = AVFMT_TS_NONSTRICT,
 };
 #endif
 #if CONFIG_AVM2_MUXER
 AVOutputFormat ff_avm2_muxer = {
     .name              = "avm2",
-    .long_name         = NULL_IF_CONFIG_SMALL("Flash 9 (AVM2) format"),
+    .long_name         = NULL_IF_CONFIG_SMALL("SWF (ShockWave Flash) (AVM2)"),
     .mime_type         = "application/x-shockwave-flash",
     .priv_data_size    = sizeof(SWFContext),
     .audio_codec       = CODEC_ID_MP3,
@@ -530,5 +528,6 @@ AVOutputFormat ff_avm2_muxer = {
     .write_header      = swf_write_header,
     .write_packet      = swf_write_packet,
     .write_trailer     = swf_write_trailer,
+    .flags             = AVFMT_TS_NONSTRICT,
 };
 #endif