avcodec/aac_adtstoasc: propagate new extradata using packet side data

This removes the current API violating behavior of overwritting the stream's
extradata during packet filtering, something that should not happen after the
av_bsf_init() call.

The bitstream filter generated extradata is no longer available during
write_header(), and as such not usable with non seekable output. The FATE
tests are updated to reflect this.
Signed-off-by: James Almer <jamrial@gmail.com>

libavcodec/aac_adtstoasc_bsf.c

@@ -97,7 +97,8 @@ static int aac_adtstoasc_filter(AVBSFContext *bsfc, AVPacket *out)
             in->data += get_bits_count(&gb)/8;
         }
 
-        extradata = av_mallocz(2 + pce_size + AV_INPUT_BUFFER_PADDING_SIZE);
+        extradata = av_packet_new_side_data(in, AV_PKT_DATA_NEW_EXTRADATA,
+                                            2 + pce_size);
         if (!extradata) {
             ret = AVERROR(ENOMEM);
             goto fail;
@@ -115,8 +116,6 @@ static int aac_adtstoasc_filter(AVBSFContext *bsfc, AVPacket *out)
             memcpy(extradata + 2, pce_data, pce_size);
         }
 
-        bsfc->par_out->extradata = extradata;
-        bsfc->par_out->extradata_size = 2 + pce_size;
         ctx->first_frame_done = 1;
     }
 

tests/fate/aac.mak

@@ -245,9 +245,8 @@ FATE_AAC_LATM += fate-aac-latm_stereo_to_51
 fate-aac-latm_stereo_to_51: CMD = pcm -i $(TARGET_SAMPLES)/aac/latm_stereo_to_51.ts -channel_layout 5.1
 fate-aac-latm_stereo_to_51: REF = $(SAMPLES)/aac/latm_stereo_to_51_ref.s16
 
-fate-aac-autobsf-adtstoasc: CMD = md5 -i $(TARGET_SAMPLES)/audiomatch/tones_afconvert_16000_mono_aac_lc.adts -acodec copy -fflags +bitexact -f matroska
-fate-aac-autobsf-adtstoasc: CMP = oneline
-fate-aac-autobsf-adtstoasc: REF = 8c76732bd04d9eb3468f9f842439774d
+fate-aac-autobsf-adtstoasc: CMD = transcode "aac" $(TARGET_SAMPLES)/audiomatch/tones_afconvert_16000_mono_aac_lc.adts \
+                                            matroska "-c:a copy" "-c:a copy"
 
 FATE_AAC-$(call      DEMDEC, AAC,    AAC)      += $(FATE_AAC_CT_RAW)
 FATE_AAC-$(call      DEMDEC, MOV,    AAC)      += $(FATE_AAC)

tests/fate/avformat.mak

@@ -93,14 +93,14 @@ tests/data/mp4-to-ts.m3u8: ffmpeg$(PROGSSUF)$(EXESUF) | tests/data
 tests/data/adts-to-mkv.m3u8: TAG = GEN
 tests/data/adts-to-mkv.m3u8: ffmpeg$(PROGSSUF)$(EXESUF) | tests/data
 	$(M)$(TARGET_EXEC) $(TARGET_PATH)/$< \
-        -i $(TARGET_SAMPLES)/audiomatch/tones_afconvert_16000_mono_aac_lc.adts \
+        -i $(TARGET_SAMPLES)/audiomatch/tones_afconvert_16000_mono_aac_lc.m4a \
         -f segment -segment_time 1 -map 0 -flags +bitexact -codec copy -segment_format_options live=1 \
         -segment_list $(TARGET_PATH)/$@ -y $(TARGET_PATH)/tests/data/adts-to-mkv-%03d.mkv 2>/dev/null
 
 tests/data/adts-to-mkv-header.mkv: TAG = GEN
 tests/data/adts-to-mkv-header.mkv: ffmpeg$(PROGSSUF)$(EXESUF) | tests/data
 	$(M)$(TARGET_EXEC) $(TARGET_PATH)/$< \
-        -i $(TARGET_SAMPLES)/audiomatch/tones_afconvert_16000_mono_aac_lc.adts \
+        -i $(TARGET_SAMPLES)/audiomatch/tones_afconvert_16000_mono_aac_lc.m4a \
         -f segment -segment_time 1 -map 0 -flags +bitexact -codec copy -segment_format_options live=1 \
         -segment_header_filename $(TARGET_PATH)/tests/data/adts-to-mkv-header.mkv \
         -y $(TARGET_PATH)/tests/data/adts-to-mkv-header-%03d.mkv 2>/dev/null

tests/ref/fate/aac-autobsf-adtstoasc

+b0375ba00bcbd55023a176255b8d4ba2 *tests/data/fate/aac-autobsf-adtstoasc.matroska
+6728 tests/data/fate/aac-autobsf-adtstoasc.matroska
+#extradata 0:        2, 0x0030001c
+#tb 0: 1/1000
+#media_type 0: audio
+#codec_id 0: aac
+#sample_rate 0: 16000
+#channel_layout 0: 4
+#channel_layout_name 0: mono
+0,          0,          0,       64,        4, 0x02f70117
+0,         64,         64,       64,      163, 0xd5f85007
+0,        128,        128,       64,      127, 0x66484065
+0,        192,        192,       64,       94, 0x55222bd6
+0,        256,        256,       64,      314, 0x3c7e923a
+0,        320,        320,       64,      207, 0x1efc5d1b
+0,        384,        384,       64,      119, 0xb2a13601
+0,        448,        448,       64,      184, 0xcafc6091
+0,        512,        512,       64,      132, 0xddd33c0b
+0,        576,        576,       64,      152, 0x83935031
+0,        640,        640,       64,      227, 0x32a86bc4
+0,        704,        704,       64,      122, 0xd04e3571
+0,        768,        768,       64,      163, 0x57d44d16
+0,        832,        832,       64,      147, 0x226043d7
+0,        896,        896,       64,      119, 0x8ad931ed
+0,        960,        960,       64,      153, 0xbb6e432f
+0,       1024,       1024,       64,      185, 0xa01f4ff3
+0,       1088,       1088,       64,      126, 0x85503ce6
+0,       1152,       1152,       64,      246, 0x652c7b59
+0,       1216,       1216,       64,      162, 0xc9f04da0
+0,       1280,       1280,       64,      135, 0x71fa3be0
+0,       1344,       1344,       64,      246, 0x7a6f7788
+0,       1408,       1408,       64,      262, 0xd3097781
+0,       1472,       1472,       64,       60, 0x09a118f5
+0,       1536,       1536,       64,      255, 0xbab5793c
+0,       1600,       1600,       64,      153, 0x6b6a44fb
+0,       1664,       1664,       64,      160, 0x550e4530
+0,       1728,       1728,       64,      215, 0x7fe66144
+0,       1792,       1792,       64,      144, 0xcd723f7d
+0,       1856,       1856,       64,      187, 0x2a0b5c1b
+0,       1920,       1920,       64,      177, 0xb8c355d5
+0,       1984,       1984,       64,      156, 0x867d4f3a
+0,       2048,       2048,       64,      201, 0x62745ff9
+0,       2112,       2112,       64,      137, 0x90c639e0