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lavf: add AVFMT_FLAG_BITEXACT.

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Use it instead of checking CODEC_FLAG_BITEXACT in the first stream's
codec context.

Using codec options inside lavf is fragile and can easily break when the
muxing codec context is not the encoding context.
This commit is contained in:
Anton Khirnov 2014-05-01 10:43:10 +02:00
parent b70d7a4ac7
commit 0c1959b056
15 changed files with 40 additions and 20 deletions
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4
doc/APIchanges
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@ -13,6 +13,10 @@ libavutil: 2013-12-xx
API changes, most recent first:
2014-05-xx - xxxxxxx - lavf 55.17.0 - avformat.h
Add AVMFT_FLAG_BITEXACT flag. Muxers now use it instead of checking
CODEC_FLAG_BITEXACT on the first stream.
2014-xx-xx - xxxxxxx - lavu 53.14.0 - pixfmt.h
Add AV_PIX_FMT_VDA for new-style VDA acceleration.

7
libavformat/avformat.h
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@ -1004,6 +1004,13 @@ typedef struct AVFormatContext {
#define AVFMT_FLAG_CUSTOM_IO 0x0080 ///< The caller has supplied a custom AVIOContext, don't avio_close() it.
#define AVFMT_FLAG_DISCARD_CORRUPT 0x0100 ///< Discard frames marked corrupted
#define AVFMT_FLAG_FLUSH_PACKETS 0x0200 ///< Flush the AVIOContext every packet.
/**
* When muxing, try to avoid writing any random/volatile data to the output.
* This includes any random IDs, real-time timestamps/dates, muxer version, etc.
*
* This flag is mainly intended for testing.
*/
#define AVFMT_FLAG_BITEXACT 0x0400
/**
* Maximum size of the data read from input for determining

2
libavformat/flacenc.c
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@ -84,7 +84,7 @@ static int flac_write_header(struct AVFormatContext *s)
return ret;
ret = flac_write_block_comment(s->pb, &s->metadata, 0,
codec->flags & CODEC_FLAG_BITEXACT);
s->flags & AVFMT_FLAG_BITEXACT);
if (ret)
return ret;

2
libavformat/matroskaenc.c
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@ -970,7 +970,7 @@ static int mkv_write_header(AVFormatContext *s)
put_ebml_uint(pb, MATROSKA_ID_TIMECODESCALE, 1000000);
if ((tag = av_dict_get(s->metadata, "title", NULL, 0)))
put_ebml_string(pb, MATROSKA_ID_TITLE, tag->value);
if (!(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT)) {
if (!(s->flags & AVFMT_FLAG_BITEXACT)) {
uint32_t segment_uid[4];
AVLFG lfg;

2
libavformat/movenc.c
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@ -2024,7 +2024,7 @@ static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
uint8_t *buf;
for (i = 0; i < s->nb_streams; i++)
if (mov->tracks[i].enc->flags & CODEC_FLAG_BITEXACT) {
if (s->flags & AVFMT_FLAG_BITEXACT) {
return 0;
}

7
libavformat/mux.c
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@ -149,6 +149,11 @@ static int init_muxer(AVFormatContext *s, AVDictionary **options)
if ((ret = av_opt_set_dict(s, &tmp)) < 0)
goto fail;
#if FF_API_LAVF_BITEXACT
if (s->nb_streams && s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT)
s->flags |= AVFMT_FLAG_BITEXACT;
#endif
// some sanity checks
if (s->nb_streams == 0 && !(of->flags & AVFMT_NOSTREAMS)) {
av_log(s, AV_LOG_ERROR, "no streams\n");
@ -252,7 +257,7 @@ static int init_muxer(AVFormatContext *s, AVDictionary **options)
}
/* set muxer identification string */
if (s->nb_streams && !(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT)) {
if (!(s->flags & AVFMT_FLAG_BITEXACT)) {
av_dict_set(&s->metadata, "encoder", LIBAVFORMAT_IDENT, 0);
}

4
libavformat/mxfenc.c
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@ -507,7 +507,7 @@ static void mxf_write_identification(AVFormatContext *s)
mxf_write_metadata_key(pb, 0x013000);
PRINT_KEY(s, "identification key", pb->buf_ptr - 16);
version = s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT ?
version = s->flags & AVFMT_FLAG_BITEXACT ?
"0.0.0" : AV_STRINGIFY(LIBAVFORMAT_VERSION);
length = 84 + (strlen(company)+strlen(product)+strlen(version))*2; // utf-16
klv_encode_ber_length(pb, length);
@ -1512,7 +1512,7 @@ static int mxf_write_header(AVFormatContext *s)
mxf->essence_container_count = 1;
}
if (!(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT))
if (!(s->flags & AVFMT_FLAG_BITEXACT))
mxf_gen_umid(s);
for (i = 0; i < s->nb_streams; i++) {

10
libavformat/oggenc.c
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@ -425,7 +425,7 @@ static int ogg_write_header(AVFormatContext *s)
oggstream = av_mallocz(sizeof(*oggstream));
oggstream->page.stream_index = i;
if (!(st->codec->flags & CODEC_FLAG_BITEXACT))
if (!(s->flags & AVFMT_FLAG_BITEXACT))
do {
serial_num = av_get_random_seed();
for (j = 0; j < i; j++) {
@ -439,7 +439,7 @@ static int ogg_write_header(AVFormatContext *s)
st->priv_data = oggstream;
if (st->codec->codec_id == AV_CODEC_ID_FLAC) {
int err = ogg_build_flac_headers(st->codec, oggstream,
st->codec->flags & CODEC_FLAG_BITEXACT,
s->flags & AVFMT_FLAG_BITEXACT,
&s->metadata);
if (err) {
av_log(s, AV_LOG_ERROR, "Error writing FLAC headers\n");
@ -448,7 +448,7 @@ static int ogg_write_header(AVFormatContext *s)
}
} else if (st->codec->codec_id == AV_CODEC_ID_SPEEX) {
int err = ogg_build_speex_headers(st->codec, oggstream,
st->codec->flags & CODEC_FLAG_BITEXACT,
s->flags & AVFMT_FLAG_BITEXACT,
&s->metadata);
if (err) {
av_log(s, AV_LOG_ERROR, "Error writing Speex headers\n");
@ -457,7 +457,7 @@ static int ogg_write_header(AVFormatContext *s)
}
} else if (st->codec->codec_id == AV_CODEC_ID_OPUS) {
int err = ogg_build_opus_headers(st->codec, oggstream,
st->codec->flags & CODEC_FLAG_BITEXACT,
s->flags & AVFMT_FLAG_BITEXACT,
&s->metadata);
if (err) {
av_log(s, AV_LOG_ERROR, "Error writing Opus headers\n");
@ -478,7 +478,7 @@ static int ogg_write_header(AVFormatContext *s)
return -1;
}
p = ogg_write_vorbiscomment(7, st->codec->flags & CODEC_FLAG_BITEXACT,
p = ogg_write_vorbiscomment(7, s->flags & AVFMT_FLAG_BITEXACT,
&oggstream->header_len[1], &s->metadata,
framing_bit);
oggstream->header[1] = p;

1
libavformat/options_table.h
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@ -42,6 +42,7 @@ static const AVOption avformat_options[] = {
{"igndts", "ignore dts", 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_IGNDTS }, INT_MIN, INT_MAX, D, "fflags"},
{"discardcorrupt", "discard corrupted frames", 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_DISCARD_CORRUPT }, INT_MIN, INT_MAX, D, "fflags"},
{"nobuffer", "reduce the latency introduced by optional buffering", 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_NOBUFFER }, 0, INT_MAX, D, "fflags"},
{"bitexact", "do not write random/volatile data", 0, AV_OPT_TYPE_CONST, { .i64 = AVFMT_FLAG_BITEXACT }, 0, 0, E, "fflags" },
{"analyzeduration", "how many microseconds are analyzed to estimate duration", OFFSET(max_analyze_duration), AV_OPT_TYPE_INT, {.i64 = 5*AV_TIME_BASE }, 0, INT_MAX, D},
{"cryptokey", "decryption key", OFFSET(key), AV_OPT_TYPE_BINARY, {.dbl = 0}, 0, 0, D},
{"indexmem", "max memory used for timestamp index (per stream)", OFFSET(max_index_size), AV_OPT_TYPE_INT, {.i64 = 1<<20 }, 0, INT_MAX, D},

5
libavformat/version.h
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@ -30,7 +30,7 @@
#include "libavutil/version.h"
#define LIBAVFORMAT_VERSION_MAJOR 55
#define LIBAVFORMAT_VERSION_MINOR 16
#define LIBAVFORMAT_VERSION_MINOR 17
#define LIBAVFORMAT_VERSION_MICRO 0
#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
@ -51,5 +51,8 @@
#ifndef FF_API_REFERENCE_DTS
#define FF_API_REFERENCE_DTS (LIBAVFORMAT_VERSION_MAJOR < 56)
#endif
#ifndef FF_API_LAVF_BITEXACT
#define FF_API_LAVF_BITEXACT (LIBAVFORMAT_VERSION_MAJOR < 56)
#endif
#endif /* AVFORMAT_VERSION_H */

2
tests/fate-run.sh
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@ -118,7 +118,7 @@ enc_dec_pcm(){
avconv -f $out_fmt -i ${encfile} -c:a pcm_${pcm_fmt} -f ${dec_fmt} -
}
FLAGS="-flags +bitexact -sws_flags +accurate_rnd+bitexact"
FLAGS="-flags +bitexact -sws_flags +accurate_rnd+bitexact -fflags +bitexact"
DEC_OPTS="-threads $threads -idct simple $FLAGS"
ENC_OPTS="-threads 1 -idct simple -dct fastint"

4
tests/fate/filter-audio.mak
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@ -45,7 +45,7 @@ FATE_FILTER_CHANNELMAP += fate-filter-channelmap-one-int
fate-filter-channelmap-one-int: tests/data/filtergraphs/channelmap_one_int
fate-filter-channelmap-one-int: SRC = $(TARGET_PATH)/tests/data/asynth-44100-6.wav
fate-filter-channelmap-one-int: tests/data/asynth-44100-6.wav
fate-filter-channelmap-one-int: CMD = md5 -i $(SRC) -filter_complex_script $(TARGET_PATH)/tests/data/filtergraphs/channelmap_one_int -f wav -flags +bitexact
fate-filter-channelmap-one-int: CMD = md5 -i $(SRC) -filter_complex_script $(TARGET_PATH)/tests/data/filtergraphs/channelmap_one_int -f wav -fflags +bitexact
fate-filter-channelmap-one-int: CMP = oneline
fate-filter-channelmap-one-int: REF = 21f1977c4f9705e2057083f84764e685
@ -53,7 +53,7 @@ FATE_FILTER_CHANNELMAP += fate-filter-channelmap-one-str
fate-filter-channelmap-one-str: tests/data/filtergraphs/channelmap_one_str
fate-filter-channelmap-one-str: SRC = $(TARGET_PATH)/tests/data/asynth-44100-2.wav
fate-filter-channelmap-one-str: tests/data/asynth-44100-2.wav
fate-filter-channelmap-one-str: CMD = md5 -i $(SRC) -filter_complex_script $(TARGET_PATH)/tests/data/filtergraphs/channelmap_one_str -f wav -flags +bitexact
fate-filter-channelmap-one-str: CMD = md5 -i $(SRC) -filter_complex_script $(TARGET_PATH)/tests/data/filtergraphs/channelmap_one_str -f wav -fflags +bitexact
fate-filter-channelmap-one-str: CMP = oneline
fate-filter-channelmap-one-str: REF = 9fe9bc452282dfd94fd80e9491607a0c

4
tests/fate/video.mak
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@ -176,7 +176,7 @@ FATE_SAMPLES_AVCONV-$(call DEMDEC, MSNWC_TCP, MIMIC) += fate-mimic
fate-mimic: CMD = framecrc -idct simple -i $(TARGET_SAMPLES)/mimic/mimic2-womanloveffmpeg.cam
FATE_SAMPLES_AVCONV-$(call DEMDEC, MOV, MJPEGB) += fate-mjpegb
fate-mjpegb: CMD = framecrc -idct simple -flags +bitexact -i $(TARGET_SAMPLES)/mjpegb/mjpegb_part.mov -an
fate-mjpegb: CMD = framecrc -idct simple -fflags +bitexact -i $(TARGET_SAMPLES)/mjpegb/mjpegb_part.mov -an
FATE_SAMPLES_AVCONV-$(call DEMDEC, MVI, MOTIONPIXELS) += fate-motionpixels
fate-motionpixels: CMD = framecrc -i $(TARGET_SAMPLES)/motion-pixels/INTRO-partial.MVI -an -pix_fmt rgb24 -vframes 111
@ -265,7 +265,7 @@ fate-v410dec: CMD = framecrc -i $(TARGET_SAMPLES)/v410/lenav410.mov -pix_fmt yuv
FATE_SAMPLES_AVCONV-$(call ENCDEC, V410 PGMYUV, AVI IMAGE2) += fate-v410enc
fate-v410enc: $(VREF)
fate-v410enc: CMD = md5 -f image2 -vcodec pgmyuv -i $(TARGET_PATH)/tests/vsynth1/%02d.pgm -flags +bitexact -vcodec v410 -f avi
fate-v410enc: CMD = md5 -f image2 -vcodec pgmyuv -i $(TARGET_PATH)/tests/vsynth1/%02d.pgm -fflags +bitexact -vcodec v410 -f avi
FATE_SAMPLES_AVCONV-$(call DEMDEC, SIFF, VB) += fate-vb
fate-vb: CMD = framecrc -i $(TARGET_SAMPLES)/SIFF/INTRO_B.VB -t 3 -pix_fmt rgb24 -an

4
tests/fate/wavpack.mak
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@ -89,12 +89,12 @@ FATE_WAVPACK-$(call DEMDEC, MATROSKA, WAVPACK) += fate-wavpack-matroskamode
fate-wavpack-matroskamode: CMD = md5 -i $(TARGET_SAMPLES)/wavpack/special/matroska_mode.mka -f s16le
FATE_WAVPACK-$(call DEMMUX, WV, MATROSKA) += fate-wavpack-matroska_mux-mono
fate-wavpack-matroska_mux-mono: CMD = md5 -i $(TARGET_SAMPLES)/wavpack/num_channels/mono_16bit_int.wv -c copy -flags +bitexact -f matroska
fate-wavpack-matroska_mux-mono: CMD = md5 -i $(TARGET_SAMPLES)/wavpack/num_channels/mono_16bit_int.wv -c copy -fflags +bitexact -f matroska
fate-wavpack-matroska_mux-mono: CMP = oneline
fate-wavpack-matroska_mux-mono: REF = 6bd769b3f0e9d7fa6261c3b73a53eb7d
FATE_WAVPACK-$(call DEMMUX, WV, MATROSKA) += fate-wavpack-matroska_mux-61
fate-wavpack-matroska_mux-61: CMD = md5 -i $(TARGET_SAMPLES)/wavpack/num_channels/eva_2.22_6.1_16bit-partial.wv -c copy -flags +bitexact -f matroska
fate-wavpack-matroska_mux-61: CMD = md5 -i $(TARGET_SAMPLES)/wavpack/num_channels/eva_2.22_6.1_16bit-partial.wv -c copy -fflags +bitexact -f matroska
fate-wavpack-matroska_mux-61: CMP = oneline
fate-wavpack-matroska_mux-61: REF = 2d2f1e7f81a8b1983fcffc7f24de8a11

2
tests/regression-funcs.sh
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@ -41,7 +41,7 @@ echov(){
. $(dirname $0)/md5.sh
AVCONV_OPTS="-nostats -y -cpuflags $cpuflags"
COMMON_OPTS="-flags +bitexact -idct simple -sws_flags +accurate_rnd+bitexact"
COMMON_OPTS="-flags +bitexact -idct simple -sws_flags +accurate_rnd+bitexact -fflags +bitexact"
DEC_OPTS="$COMMON_OPTS -threads $threads"
ENC_OPTS="$COMMON_OPTS -threads 1 -dct fastint"