mirror of https://git.ffmpeg.org/ffmpeg.git
big/little endian fix
storing 64bit stuff in int fix put_v() fix startcodes nut_probe() Originally committed as revision 2212 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer
parent
3aa180b84e
commit
3ac8749b90
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@ -40,6 +40,14 @@
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#include "avformat.h"
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#include "mpegaudio.h"
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//from /dev/random
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#define MAIN_STARTCODE (0xF9526A6200000000ULL + ('N'<<24) + ('U'<<16) + ('T'<<8) + 'M')
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#define STREAM_STARTCODE (0xD667773F00000000ULL + ('N'<<24) + ('U'<<16) + ('T'<<8) + 'S')
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#define KEYFRAME_STARTCODE (0xCB86308700000000ULL + ('N'<<24) + ('U'<<16) + ('T'<<8) + 'K')
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#define INDEX_STARTCODE (0xEBFCDE0E00000000ULL + ('N'<<24) + ('U'<<16) + ('T'<<8) + 'X')
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#define INFO_STARTCODE (0xA37B643500000000ULL + ('N'<<24) + ('U'<<16) + ('T'<<8) + 'I')
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typedef struct {
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int curr_frame_start;
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int last_frame_size;
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@ -135,8 +143,9 @@ static int put_v(ByteIOContext *bc, uint64_t val)
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if ((val>>i) == 0)
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break;
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for (i-=7; i>0; i-=8)
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for (i-=7; i>0; i-=7){
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put_byte(bc, 0x80 | (val>>i));
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}
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put_byte(bc, val&0x7f);
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@ -209,13 +218,13 @@ static int nut_write_header(AVFormatContext *s)
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put_packetheader(nut, bc, 16); /* FIXME: estimation */
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/* main header */
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put_le64(bc, 1); /* FIXME: unique startcode */
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put_be64(bc, MAIN_STARTCODE);
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put_v(bc, 0); /* version */
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put_v(bc, s->nb_streams);
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put_v(bc, 0); /* file size */
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put_v(bc, stream_length); /* len in msec */
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put_padding(nut, bc);
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put_le32(bc, 0); /* FIXME: checksum */
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put_be32(bc, 0); /* FIXME: checksum */
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/* stream headers */
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for (i = 0; i < s->nb_streams; i++)
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@ -223,24 +232,24 @@ static int nut_write_header(AVFormatContext *s)
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codec = &s->streams[i]->codec;
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put_packetheader(nut, bc, 64); /* FIXME: estimation */
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put_le64(bc, 1); /* FIXME: unique startcode */
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put_be64(bc, STREAM_STARTCODE);
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put_v(bc, s->streams[i]->index);
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put_v(bc, (codec->codec_type == CODEC_TYPE_AUDIO) ? 32 : 0);
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if (codec->codec_tag)
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put_b(bc, codec->codec_tag, 4);
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put_b(bc, &codec->codec_tag, 4);
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else if (codec->codec_type == CODEC_TYPE_VIDEO)
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{
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int tmp = codec_get_bmp_tag(codec->codec_id);
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put_b(bc, &tmp, 4);
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// put_v(bc, 4); /* len */
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// put_le32(bc, codec_get_bmp_tag(codec->codec_id));
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// put_be32(bc, codec_get_bmp_tag(codec->codec_id));
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}
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else if (codec->codec_type == CODEC_TYPE_AUDIO)
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{
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int tmp = codec_get_wav_tag(codec->codec_id);
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put_b(bc, &tmp, 4);
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// put_v(bc, 4); /* len */
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// put_le32(bc, codec_get_wav_tag(codec->codec_id));
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// put_be32(bc, codec_get_wav_tag(codec->codec_id));
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}
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put_v(bc, codec->bit_rate);
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put_v(bc, 0); /* no language code */
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@ -258,7 +267,7 @@ static int nut_write_header(AVFormatContext *s)
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put_v(bc, codec->sample_rate / (double)(codec->frame_rate_base / codec->frame_rate));
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put_v(bc, codec->channels);
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put_padding(nut, bc);
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put_le32(bc, 0); /* FIXME: checksum */
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put_be32(bc, 0); /* FIXME: checksum */
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break;
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case CODEC_TYPE_VIDEO:
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put_v(bc, codec->width);
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@ -267,7 +276,7 @@ static int nut_write_header(AVFormatContext *s)
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put_v(bc, 0); /* aspected h */
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put_v(bc, 0); /* csp type -- unknown */
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put_padding(nut, bc);
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put_le32(bc, 0); /* FIXME: checksum */
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put_be32(bc, 0); /* FIXME: checksum */
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break;
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}
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}
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@ -276,7 +285,7 @@ static int nut_write_header(AVFormatContext *s)
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/* info header */
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put_packetheader(nut, bc, 16+strlen(s->author)+strlen(s->title)+
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strlen(s->comment)+strlen(s->copyright)); /* FIXME: estimation */
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put_le64(bc, 1); /* FIXME: unique startcode */
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put_be64(bc, INFO_STARTCODE);
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if (s->author[0])
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{
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put_v(bc, 5); /* type */
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@ -302,7 +311,7 @@ static int nut_write_header(AVFormatContext *s)
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put_b(bc, LIBAVFORMAT_IDENT, strlen(LIBAVFORMAT_IDENT));
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put_padding(nut, bc);
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put_le32(bc, 0); /* FIXME: checksum */
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put_be32(bc, 0); /* FIXME: checksum */
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#endif
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put_flush_packet(bc);
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@ -316,6 +325,7 @@ static int nut_write_packet(AVFormatContext *s, int stream_index,
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NUTContext *nut = s->priv_data;
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ByteIOContext *bc = &s->pb;
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int key_frame = 0;
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int flags, size2;
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AVCodecContext *enc;
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if (stream_index > s->nb_streams)
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@ -328,8 +338,16 @@ static int nut_write_packet(AVFormatContext *s, int stream_index,
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put_packetheader(nut, bc, size+(key_frame?16:8)+4); /* FIXME: estimation */
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if (key_frame)
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put_le64(bc, 1); /* FIXME: unique startcode */
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put_byte(bc, (key_frame ? 1<<5 : 0) + (1 << 1)); /* flags */
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put_be64(bc, KEYFRAME_STARTCODE);
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flags=0;
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flags<<=2; flags|=1; //priority
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flags<<=1; flags|=0; //checksum
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flags<<=1; flags|=0; //msb_timestamp_flag
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flags<<=2; flags|=1; //subpacket_type
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flags<<=1; flags|=0; //reserved
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put_byte(bc, flags);
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put_v(bc, stream_index);
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put_s(bc, 0); /* lsb_timestamp */
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@ -354,11 +372,11 @@ static int nut_write_trailer(AVFormatContext *s)
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for (i = 0; s->nb_streams; i++)
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{
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put_packetheader(nut, bc, 64); /* FIXME: estimation */
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put_le64(bc, 1); /* FIXME: unique startcode */
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put_be64(bc, INDEX_STARTCODE);
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put_v(bc, s->streams[i]->id);
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put_v(bc, ...);
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put_padding(nut, bc);
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put_le32(bc, 0); /* FIXME: checksum */
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put_be32(bc, 0); /* FIXME: checksum */
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}
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#endif
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@ -369,25 +387,36 @@ static int nut_write_trailer(AVFormatContext *s)
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static int nut_probe(AVProbeData *p)
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{
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return AVPROBE_SCORE_MAX;
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int i;
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uint64_t code;
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code = 0xff;
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for (i = 0; i < p->buf_size; i++) {
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int c = p->buf[i];
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code = (code << 8) | c;
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code &= 0xFFFFFFFFFFFFFFFFULL;
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if (code == MAIN_STARTCODE)
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return AVPROBE_SCORE_MAX;
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}
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return 0;
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}
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static int nut_read_header(AVFormatContext *s, AVFormatParameters *ap)
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{
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NUTContext *nut = s->priv_data;
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ByteIOContext *bc = &s->pb;
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int tmp;
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uint64_t tmp;
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int cur_stream, nb_streams;
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/* main header */
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get_packetheader(nut, bc);
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tmp = get_le64(bc);
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if (tmp != 1)
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fprintf(stderr, "damaged? startcode!=1 (%d)\n", tmp);
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tmp = get_be64(bc);
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if (tmp != MAIN_STARTCODE)
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fprintf(stderr, "damaged? startcode!=1 (%Ld)\n", tmp);
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tmp = get_v(bc);
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if (tmp != 0)
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fprintf(stderr, "bad version (%d)\n", tmp);
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fprintf(stderr, "bad version (%Ld)\n", tmp);
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nb_streams = get_v(bc);
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@ -395,7 +424,7 @@ static int nut_read_header(AVFormatContext *s, AVFormatParameters *ap)
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s->duration = get_v(bc) / (AV_TIME_BASE / 1000);
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get_padding(nut, bc);
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get_le32(bc); /* checkusm */
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get_be32(bc); /* checkusm */
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s->bit_rate = 0;
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@ -406,9 +435,9 @@ static int nut_read_header(AVFormatContext *s, AVFormatParameters *ap)
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AVStream *st;
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get_packetheader(nut, bc);
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tmp = get_le64(bc);
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if (tmp != 1)
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fprintf(stderr, "damaged? startcode!=1 (%d)\n", tmp);
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tmp = get_be64(bc);
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if (tmp != STREAM_STARTCODE)
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fprintf(stderr, "damaged? startcode!=1 (%Ld)\n", tmp);
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st = av_new_stream(s, get_v(bc));
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if (!st)
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return AVERROR_NOMEM;
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@ -418,8 +447,8 @@ static int nut_read_header(AVFormatContext *s, AVFormatParameters *ap)
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case 0:
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st->codec.codec_type = CODEC_TYPE_VIDEO;
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// get_v(bc);
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// tmp = get_le32(bc);
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get_b(bc, &tmp, 4);
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// tmp = get_be32(bc);
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get_b(bc, (char*)&tmp, 4);
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st->codec.codec_id = codec_get_bmp_id(tmp);
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if (st->codec.codec_id == CODEC_ID_NONE)
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fprintf(stderr, "Unknown codec?!\n");
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@ -427,8 +456,8 @@ static int nut_read_header(AVFormatContext *s, AVFormatParameters *ap)
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case 32:
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st->codec.codec_type = CODEC_TYPE_AUDIO;
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// tmp = get_v(bc);
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// tmp = get_le32(bc);
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get_b(bc, &tmp, 4);
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// tmp = get_be32(bc);
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get_b(bc, (char*)&tmp, 4);
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st->codec.codec_id = codec_get_wav_id(tmp);
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if (st->codec.codec_id == CODEC_ID_NONE)
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fprintf(stderr, "Unknown codec?!\n");
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@ -475,8 +504,9 @@ static int nut_read_packet(AVFormatContext *s, AVPacket *pkt)
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{
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NUTContext *nut = s->priv_data;
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ByteIOContext *bc = &s->pb;
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int tmp, id, timestamp, size;
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int id, timestamp, size;
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int key_frame = 0;
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uint64_t tmp;
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get_packetheader(nut, bc);
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@ -484,24 +514,28 @@ static int nut_read_packet(AVFormatContext *s, AVPacket *pkt)
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return -1;
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tmp = get_byte(bc);
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if ((tmp & 0x7f) == 1) /* zero bit set? */
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if (tmp & 0x80) /* zero bit set? */
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{
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tmp = get_le32(bc)+get_le16(bc)+get_byte(bc);
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if (!tmp)
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tmp<<=8 ; tmp |= get_byte(bc);
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tmp<<=16; tmp |= get_be16(bc);
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tmp<<=32; tmp |= get_be32(bc);
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if (tmp == KEYFRAME_STARTCODE)
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{
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key_frame = 1;
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tmp = get_byte(bc); /* flags */
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}
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else
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fprintf(stderr, "error in zero bit / startcode\n");
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fprintf(stderr, "error in zero bit / startcode %LX\n", tmp);
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}
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if ((tmp & 0x9f) > 3) /* priority <= 3 */
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#if 0
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if (((tmp & 0x60)>>5) > 3) /* priority <= 3 */
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fprintf(stderr, "sanity check failed!\n");
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#endif
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id = get_v(bc);
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timestamp = get_s(bc);
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size = (nut->curr_frame_size - (url_ftell(bc)-nut->curr_frame_start));
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dprintf("flags: 0x%x, timestamp: %d, packet size: %d\n", tmp, timestamp, size);
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dprintf("flags: 0x%Lx, timestamp: %d, packet size: %d\n", tmp, timestamp, size);
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if (size < 0)
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return -1;
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