zotan/nginx-mod-rtmp
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This commit is contained in:
Roman Arutyunyan 2013-11-12 17:38:47 +04:00
parent c18fd3aad4
commit 85d34da0d4
1 changed files with 107 additions and 108 deletions
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215
dash/ngx_rtmp_mp4.c
View file

@ -6,35 +6,20 @@
#include <ngx_rtmp_codec_module.h>
/* tie resolution */
#define NGX_RTMP_MP4_TIMESCALE 1000
/* normal forward playback as defined by spec */
#define NGX_RTMP_MP4_PREFERRED_RATE 0x00010000
/* full volume as defined by spec */
#define NGX_RTMP_MP4_PREFERRED_VOLUME 0x0100
static u_char compressor_name[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
/*
static ngx_int_t
ngx_rtmp_mp4_field_64(ngx_buf_t *b, uint64_t n)
{
u_char bytes[8];
u_char bytes[8];
bytes[0] = ((uint64_t)n >> 56) & 0xFF;
bytes[1] = ((uint64_t)n >> 48) & 0xFF;
bytes[2] = ((uint64_t)n >> 40) & 0xFF;
bytes[3] = ((uint64_t)n >> 32) & 0xFF;
bytes[4] = ((uint64_t)n >> 24) & 0xFF;
bytes[5] = ((uint64_t)n >> 16) & 0xFF;
bytes[6] = ((uint64_t)n >> 8) & 0xFF;
bytes[7] = (uint64_t)n & 0xFF;
bytes[0] = ((uint64_t) n >> 56) & 0xFF;
bytes[1] = ((uint64_t) n >> 48) & 0xFF;
bytes[2] = ((uint64_t) n >> 40) & 0xFF;
bytes[3] = ((uint64_t) n >> 32) & 0xFF;
bytes[4] = ((uint64_t) n >> 24) & 0xFF;
bytes[5] = ((uint64_t) n >> 16) & 0xFF;
bytes[6] = ((uint64_t) n >> 8) & 0xFF;
bytes[7] = (uint64_t) n & 0xFF;
if (b->last + sizeof(bytes) > b->end) {
return NGX_ERROR;
@ -49,12 +34,12 @@ ngx_rtmp_mp4_field_64(ngx_buf_t *b, uint64_t n)
static ngx_int_t
ngx_rtmp_mp4_field_32(ngx_buf_t *b, uint32_t n)
{
u_char bytes[4];
u_char bytes[4];
bytes[0] = ((uint32_t)n >> 24) & 0xFF;
bytes[1] = ((uint32_t)n >> 16) & 0xFF;
bytes[2] = ((uint32_t)n >> 8) & 0xFF;
bytes[3] = (uint32_t)n & 0xFF;
bytes[0] = ((uint32_t) n >> 24) & 0xFF;
bytes[1] = ((uint32_t) n >> 16) & 0xFF;
bytes[2] = ((uint32_t) n >> 8) & 0xFF;
bytes[3] = (uint32_t) n & 0xFF;
if (b->last + sizeof(bytes) > b->end) {
return NGX_ERROR;
@ -69,11 +54,11 @@ ngx_rtmp_mp4_field_32(ngx_buf_t *b, uint32_t n)
static ngx_int_t
ngx_rtmp_mp4_field_24(ngx_buf_t *b, uint32_t n)
{
u_char bytes[3];
u_char bytes[3];
bytes[0] = ((uint32_t)n >> 16) & 0xFF;
bytes[1] = ((uint32_t)n >> 8) & 0xFF;
bytes[2] = (uint32_t)n & 0xFF;
bytes[0] = ((uint32_t) n >> 16) & 0xFF;
bytes[1] = ((uint32_t) n >> 8) & 0xFF;
bytes[2] = (uint32_t) n & 0xFF;
if (b->last + sizeof(bytes) > b->end) {
return NGX_ERROR;
@ -88,10 +73,10 @@ ngx_rtmp_mp4_field_24(ngx_buf_t *b, uint32_t n)
static ngx_int_t
ngx_rtmp_mp4_field_16(ngx_buf_t *b, uint32_t n)
{
u_char bytes[2];
u_char bytes[2];
bytes[0] = ((uint32_t)n >> 8) & 0xFF;
bytes[1] = (uint32_t)n & 0xFF;
bytes[0] = ((uint32_t) n >> 8) & 0xFF;
bytes[1] = (uint32_t) n & 0xFF;
if (b->last + sizeof(bytes) > b->end) {
return NGX_ERROR;
@ -106,7 +91,7 @@ ngx_rtmp_mp4_field_16(ngx_buf_t *b, uint32_t n)
static ngx_int_t
ngx_rtmp_mp4_field_8(ngx_buf_t *b, unsigned int n)
{
u_char bytes[1];
u_char bytes[1];
bytes[0] = n & 0xFF;
@ -121,15 +106,9 @@ ngx_rtmp_mp4_field_8(ngx_buf_t *b, unsigned int n)
static ngx_int_t
ngx_rtmp_mp4_put_descr(ngx_buf_t *b, int tag, unsigned int size) {
//int i = 3;
/* initially stolen from ffmpeg, but most of it isnt necessary */
ngx_rtmp_mp4_put_descr(ngx_buf_t *b, int tag, unsigned int size)
{
ngx_rtmp_mp4_field_8(b, tag);
//for (; i > 0; i--) {
// ngx_rtmp_mp4_field_8(b, (size >> (7 * i)) | 0x80);
//}
ngx_rtmp_mp4_field_8(b, size & 0x7F);
return NGX_OK;
@ -139,12 +118,12 @@ ngx_rtmp_mp4_put_descr(ngx_buf_t *b, int tag, unsigned int size) {
static ngx_int_t
ngx_rtmp_mp4_update_box_size(ngx_buf_t *b, u_char *pos)
{
u_char *curpos;
u_char *curpos;
curpos = b->last;
b->last = pos;
ngx_rtmp_mp4_field_32(b, (curpos-pos));
ngx_rtmp_mp4_field_32(b, (uint32_t) (curpos - pos));
b->last = curpos;
@ -152,14 +131,18 @@ ngx_rtmp_mp4_update_box_size(ngx_buf_t *b, u_char *pos)
}
/* transformation matrix
|a b u|
|c d v|
|tx ty w| */
static ngx_int_t
ngx_rtmp_mp4_write_matrix(ngx_buf_t *buf, int16_t a, int16_t b, int16_t c,
int16_t d, int16_t tx, int16_t ty)
{
/*
* transformation matrix
* |a b u|
* |c d v|
* |tx ty w|
*/
ngx_rtmp_mp4_field_32(buf, a << 16); /* 16.16 format */
ngx_rtmp_mp4_field_32(buf, b << 16); /* 16.16 format */
ngx_rtmp_mp4_field_32(buf, 0); /* u in 2.30 format */
@ -222,7 +205,7 @@ ngx_rtmp_mp4_write_ftyp(ngx_buf_t *b, int type,
static ngx_int_t
ngx_rtmp_mp4_write_mvhd(ngx_buf_t *b, ngx_rtmp_mp4_metadata_t *metadata)
{
u_char *pos;
u_char *pos;
pos = b->last;
@ -234,10 +217,10 @@ ngx_rtmp_mp4_write_mvhd(ngx_buf_t *b, ngx_rtmp_mp4_metadata_t *metadata)
ngx_rtmp_mp4_field_32(b, 0); /* version */
ngx_rtmp_mp4_field_32(b, 0x00000000); /* creation time */
ngx_rtmp_mp4_field_32(b, 0); /* modification time */
ngx_rtmp_mp4_field_32(b, NGX_RTMP_MP4_TIMESCALE); /* timescale */
ngx_rtmp_mp4_field_32(b, 1000); /* timescale */
ngx_rtmp_mp4_field_32(b, 0); /* duration */
ngx_rtmp_mp4_field_32(b, NGX_RTMP_MP4_PREFERRED_RATE); /* playback rate */
ngx_rtmp_mp4_field_16(b, NGX_RTMP_MP4_PREFERRED_VOLUME); /* volume rate */
ngx_rtmp_mp4_field_32(b, 0x00010000); /* playback rate */
ngx_rtmp_mp4_field_16(b, 0x0100); /* volume rate */
ngx_rtmp_mp4_field_16(b, 0); /* reserved */
ngx_rtmp_mp4_field_32(b, 0); /* reserved */
ngx_rtmp_mp4_field_32(b, 0); /* reserved */
@ -262,7 +245,7 @@ ngx_rtmp_mp4_write_mvhd(ngx_buf_t *b, ngx_rtmp_mp4_metadata_t *metadata)
static ngx_int_t
ngx_rtmp_mp4_write_tkhd(ngx_buf_t *b, ngx_rtmp_mp4_metadata_t *metadata)
{
u_char *pos;
u_char *pos;
pos = b->last;
@ -324,7 +307,7 @@ ngx_rtmp_mp4_write_mdhd(ngx_buf_t *b)
ngx_rtmp_mp4_field_32(b, 0);
/* time scale*/
ngx_rtmp_mp4_field_32(b, NGX_RTMP_MP4_TIMESCALE);
ngx_rtmp_mp4_field_32(b, 1000);
/* duration */
ngx_rtmp_mp4_field_32(b, 0);
@ -344,7 +327,7 @@ ngx_rtmp_mp4_write_mdhd(ngx_buf_t *b)
static ngx_int_t
ngx_rtmp_mp4_write_hdlr(ngx_buf_t *b, ngx_rtmp_mp4_metadata_t *metadata)
{
u_char *pos;
u_char *pos;
pos = b->last;
@ -418,7 +401,7 @@ ngx_rtmp_mp4_write_smhd(ngx_buf_t *b)
static ngx_int_t
ngx_rtmp_mp4_write_dref(ngx_buf_t *b, ngx_rtmp_mp4_metadata_t *metadata)
{
u_char *pos;
u_char *pos;
pos = b->last;
@ -444,7 +427,7 @@ ngx_rtmp_mp4_write_dref(ngx_buf_t *b, ngx_rtmp_mp4_metadata_t *metadata)
static ngx_int_t
ngx_rtmp_mp4_write_dinf(ngx_buf_t *b, ngx_rtmp_mp4_metadata_t *metadata)
{
u_char *pos;
u_char *pos;
pos = b->last;
@ -465,9 +448,9 @@ static ngx_int_t
ngx_rtmp_mp4_write_avcc(ngx_rtmp_session_t *s, ngx_buf_t *b,
ngx_rtmp_mp4_metadata_t *metadata)
{
u_char *pos, *p;
ngx_rtmp_codec_ctx_t *codec_ctx;
ngx_chain_t *in;
u_char *pos, *p;
ngx_chain_t *in;
ngx_rtmp_codec_ctx_t *codec_ctx;
codec_ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_codec_module);
@ -509,46 +492,63 @@ ngx_rtmp_mp4_write_avcc(ngx_rtmp_session_t *s, ngx_buf_t *b,
static ngx_int_t
ngx_rtmp_mp4_write_video(ngx_rtmp_session_t *s, ngx_buf_t *b,
ngx_rtmp_mp4_metadata_t *metadata)
ngx_rtmp_mp4_metadata_t *metadata)
{
u_char *pos;
u_char *pos;
pos = b->last;
/* box size placeholder */
ngx_rtmp_mp4_field_32(b, 0);
b->last = ngx_cpymem(b->last, "avc1", sizeof("avc1")-1);
b->last = ngx_cpymem(b->last, "avc1", sizeof("avc1") - 1);
ngx_rtmp_mp4_field_32(b, 0); /* reserved */
ngx_rtmp_mp4_field_16(b, 0); /* reserved */
ngx_rtmp_mp4_field_16(b, 1); /* data reference index */
ngx_rtmp_mp4_field_16(b, 0); /* codec stream version */
ngx_rtmp_mp4_field_16(b, 0); /* codec stream revision (=0) */
ngx_rtmp_mp4_field_32(b, 0); /* reserved */
ngx_rtmp_mp4_field_32(b, 0); /* reserved */
ngx_rtmp_mp4_field_32(b, 0); /* reserved */
/* reserved */
ngx_rtmp_mp4_field_32(b, 0);
ngx_rtmp_mp4_field_16(b, 0);
/* data reference index */
ngx_rtmp_mp4_field_16(b, 1);
/* codec stream version & revision */
ngx_rtmp_mp4_field_16(b, 0);
ngx_rtmp_mp4_field_16(b, 0);
/* reserved */
ngx_rtmp_mp4_field_32(b, 0);
ngx_rtmp_mp4_field_32(b, 0);
ngx_rtmp_mp4_field_32(b, 0);
/* width & height */
ngx_rtmp_mp4_field_16(b, metadata->width);
ngx_rtmp_mp4_field_16(b, metadata->height);
ngx_rtmp_mp4_field_32(b, 0x00480000); /* Horizontal resolution 72dpi */
ngx_rtmp_mp4_field_32(b, 0x00480000); /* Vertical resolution 72dpi */
ngx_rtmp_mp4_field_32(b, 0); /* Data size (= 0) */
ngx_rtmp_mp4_field_16(b, 1); /* Frame count (= 1) */
ngx_rtmp_mp4_field_8(b, 0); /* compressor name len */
b->last = ngx_cpymem(b->last, compressor_name, sizeof(compressor_name)+1);
/* horizontal & vertical resolutions 72 dpi */
ngx_rtmp_mp4_field_32(b, 0x00480000);
ngx_rtmp_mp4_field_32(b, 0x00480000);
ngx_rtmp_mp4_field_32(b, 0); /* reserved */
ngx_rtmp_mp4_field_32(b, 0); /* reserved */
ngx_rtmp_mp4_field_32(b, 0); /* reserved */
ngx_rtmp_mp4_field_32(b, 0); /* reserved */
ngx_rtmp_mp4_field_32(b, 0); /* reserved */
ngx_rtmp_mp4_field_16(b, 0x18); /* reserved */
ngx_rtmp_mp4_field_16(b, 0xffff); /* reserved */
/* data size */
ngx_rtmp_mp4_field_32(b, 0);
/* frame count */
ngx_rtmp_mp4_field_16(b, 1);
/* compressor name */
ngx_rtmp_mp4_field_32(b, 0);
ngx_rtmp_mp4_field_32(b, 0);
ngx_rtmp_mp4_field_32(b, 0);
/* reserved */
ngx_rtmp_mp4_field_32(b, 0);
ngx_rtmp_mp4_field_32(b, 0);
ngx_rtmp_mp4_field_32(b, 0);
ngx_rtmp_mp4_field_32(b, 0);
ngx_rtmp_mp4_field_32(b, 0);
ngx_rtmp_mp4_field_16(b, 0x18);
ngx_rtmp_mp4_field_16(b, 0xffff);
ngx_rtmp_mp4_write_avcc(s, b, metadata);
ngx_rtmp_mp4_update_box_size(b, pos);
return NGX_OK;
@ -557,14 +557,13 @@ ngx_rtmp_mp4_write_video(ngx_rtmp_session_t *s, ngx_buf_t *b,
static ngx_int_t
ngx_rtmp_mp4_write_esds(ngx_rtmp_session_t *s, ngx_buf_t *b,
ngx_rtmp_mp4_metadata_t *metadata)
ngx_rtmp_mp4_metadata_t *metadata)
{
u_char *pos;
ngx_rtmp_codec_ctx_t *codec_ctx;
ngx_chain_t *aac;
int decoder_info;
int aac_header_offset;
int decoder_info;
int aac_header_offset;
u_char *pos;
ngx_chain_t *aac;
ngx_rtmp_codec_ctx_t *codec_ctx;
codec_ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_codec_module);
@ -620,9 +619,9 @@ ngx_rtmp_mp4_write_esds(ngx_rtmp_session_t *s, ngx_buf_t *b,
static ngx_int_t
ngx_rtmp_mp4_write_audio(ngx_rtmp_session_t *s, ngx_buf_t *b,
ngx_rtmp_mp4_metadata_t *metadata)
ngx_rtmp_mp4_metadata_t *metadata)
{
u_char *pos;
u_char *pos;
pos = b->last;
@ -656,9 +655,9 @@ ngx_rtmp_mp4_write_audio(ngx_rtmp_session_t *s, ngx_buf_t *b,
static ngx_int_t
ngx_rtmp_mp4_write_stsd(ngx_rtmp_session_t *s, ngx_buf_t *b,
ngx_rtmp_mp4_metadata_t *metadata)
ngx_rtmp_mp4_metadata_t *metadata)
{
u_char *pos;
u_char *pos;
pos = b->last;
@ -686,7 +685,7 @@ ngx_rtmp_mp4_write_stsd(ngx_rtmp_session_t *s, ngx_buf_t *b,
static ngx_int_t
ngx_rtmp_mp4_write_stts(ngx_buf_t *b)
{
u_char *pos;
u_char *pos;
pos = b->last;
@ -707,7 +706,7 @@ ngx_rtmp_mp4_write_stts(ngx_buf_t *b)
static ngx_int_t
ngx_rtmp_mp4_write_stsc(ngx_buf_t *b)
{
u_char *pos;
u_char *pos;
pos = b->last;
@ -728,7 +727,7 @@ ngx_rtmp_mp4_write_stsc(ngx_buf_t *b)
static ngx_int_t
ngx_rtmp_mp4_write_stsz(ngx_buf_t *b)
{
u_char *pos;
u_char *pos;
pos = b->last;
@ -750,7 +749,7 @@ ngx_rtmp_mp4_write_stsz(ngx_buf_t *b)
static ngx_int_t
ngx_rtmp_mp4_write_stco(ngx_buf_t *b)
{
u_char *pos;
u_char *pos;
pos = b->last;
@ -772,7 +771,7 @@ static ngx_int_t
ngx_rtmp_mp4_write_stbl(ngx_rtmp_session_t *s, ngx_buf_t *b,
ngx_rtmp_mp4_metadata_t *metadata)
{
u_char *pos;
u_char *pos;
pos = b->last;
@ -920,7 +919,7 @@ ngx_int_t
ngx_rtmp_mp4_write_moov(ngx_rtmp_session_t *s, ngx_buf_t *b,
ngx_rtmp_mp4_metadata_t *metadata)
{
u_char *pos;
u_char *pos;
pos = b->last;
@ -942,7 +941,7 @@ ngx_rtmp_mp4_write_moov(ngx_rtmp_session_t *s, ngx_buf_t *b,
static ngx_int_t
ngx_rtmp_mp4_write_tfhd(ngx_buf_t *b)
{
u_char *pos;
u_char *pos;
pos = b->last;
@ -1125,7 +1124,7 @@ ngx_rtmp_mp4_write_sidx(ngx_buf_t *b, ngx_uint_t reference_size,
ngx_rtmp_mp4_field_32(b, 1);
/* timescale */
ngx_rtmp_mp4_field_32(b, NGX_RTMP_MP4_TIMESCALE);
ngx_rtmp_mp4_field_32(b, 1000);
/* earliest presentation time */
ngx_rtmp_mp4_field_32(b, earliest_pres_time);
@ -1186,7 +1185,7 @@ ngx_rtmp_mp4_write_mdat(ngx_buf_t *b, ngx_uint_t size)
{
ngx_rtmp_mp4_field_32(b, size);
b->last = ngx_cpymem(b->last, "mdat", sizeof("mdat")-1);
b->last = ngx_cpymem(b->last, "mdat", sizeof("mdat") - 1);
return NGX_OK;
}