[MPlayer-dev-eng] [PATCH] add support for all current and future x264 options
Loren Merritt
lorenm at u.washington.edu
Mon Oct 2 10:56:47 CEST 2006
On Sun, 1 Oct 2006, Guillaume POIRIER wrote:
> Hi there,
> Attached patch does $SUBJ. The doc part can be improved I imagine, but
> I lack the technical background to do so.
Counter proposal: libx264 already contains code to parse options
symbolically, no need to duplicate it in mencoder.
However, some of the older options didn't use the same names between
mencoder and x264cli, so they would have to change.
(documentation part not included.)
Side-effect: if we do it this way, a failure to parse -x264encopts is a
vf_open error rather than a parse error. vf_open errors aren't
fatal, so it tries to continue encoding. This should be fixed anyway.
--Loren Merritt
-------------- next part --------------
Index: configure
===================================================================
--- configure (revision 20016)
+++ configure (working copy)
@@ -6511,7 +6511,7 @@
cat > $TMPC << EOF
#include <inttypes.h>
#include <x264.h>
-#if X264_BUILD < 48
+#if X264_BUILD < 53
#error We do not support old versions of x264. Get the latest from SVN.
#endif
int main(void) { x264_encoder_open((void*)0); return 0; }
Index: cfg-mencoder.h
===================================================================
--- cfg-mencoder.h (revision 20016)
+++ cfg-mencoder.h (working copy)
@@ -43,7 +43,7 @@
#endif
#if defined(HAVE_X264)
-extern m_option_t x264encopts_conf[];
+extern char *x264encopts;
#endif
extern m_option_t nuvopts_conf[];
@@ -271,7 +271,7 @@
{"xvidencopts", xvidencopts_conf, CONF_TYPE_SUBCONFIG, CONF_GLOBAL, 0, 0, NULL},
#endif
#if defined(HAVE_X264)
- {"x264encopts", x264encopts_conf, CONF_TYPE_SUBCONFIG, CONF_GLOBAL, 0, 0, NULL},
+ {"x264encopts", &x264encopts, CONF_TYPE_STRING, CONF_GLOBAL, 0, 0, NULL},
#endif
{"nuvopts", nuvopts_conf, CONF_TYPE_SUBCONFIG, CONF_GLOBAL, 0, 0, NULL},
Index: libmpcodecs/ve_x264.c
===================================================================
--- libmpcodecs/ve_x264.c (revision 20017)
+++ libmpcodecs/ve_x264.c (working copy)
@@ -55,178 +55,9 @@
} h264_module_t;
extern char* passtmpfile;
-
-static int bitrate = -1;
-static int qp_constant = 26;
-static int rf_constant = 0;
-static int frame_ref = 1;
-static int keyint_max = 250;
-static int keyint_min = 25;
-static int scenecut_threshold = 40;
-static int bframe = 0;
-static int bframe_adaptive = 1;
-static int bframe_bias = 0;
-static int bframe_pyramid = 0;
-static int deblock = 1;
-static int deblockalpha = 0;
-static int deblockbeta = 0;
-static int cabac = 1;
-static int p4x4mv = 0;
-static int p8x8mv = 1;
-static int b8x8mv = 1;
-static int i8x8 = 1;
-static int i4x4 = 1;
-static int dct8 = 0;
-static int direct_pred = X264_DIRECT_PRED_SPATIAL;
-static int weight_b = 0;
-static int chroma_me = 1;
-static int mixed_references = 0;
-static int chroma_qp_offset = 0;
-static float ip_factor = 1.4;
-static float pb_factor = 1.3;
-static float ratetol = 1.0;
-static int vbv_maxrate = 0;
-static int vbv_bufsize = 0;
-static float vbv_init = 0.9;
-static int qp_min = 10;
-static int qp_max = 51;
-static int qp_step = 2;
-static int pass = 0;
-static float qcomp = 0.6;
-static float qblur = 0.5;
-static float complexity_blur = 20;
-static char *rc_eq = "blurCplx^(1-qComp)";
-static char *zones = NULL;
-static int subq = 5;
-static int bframe_rdo = 0;
-static int bidir_me = 0;
-static int me_method = 2;
-static int me_range = 16;
-static int trellis = 1;
-static int fast_pskip = 1;
-static int dct_decimate = 1;
-static int noise_reduction = 0;
-static int threads = 1;
-static int level_idc = 51;
-static int psnr = 0;
-static int log_level = 2;
static int turbo = 0;
-static int visualize = 0;
-static char *cqm = NULL;
-static char *cqm4iy = NULL;
-static char *cqm4ic = NULL;
-static char *cqm4py = NULL;
-static char *cqm4pc = NULL;
-static char *cqm8iy = NULL;
-static char *cqm8py = NULL;
-static int globalheader=0;
+char *x264encopts = "";
-m_option_t x264encopts_conf[] = {
- {"bitrate", &bitrate, CONF_TYPE_INT, CONF_RANGE, 0, 24000000, NULL},
- {"qp_constant", &qp_constant, CONF_TYPE_INT, CONF_RANGE, 0, 51, NULL},
- {"qp", &qp_constant, CONF_TYPE_INT, CONF_RANGE, 0, 51, NULL},
- {"crf", &rf_constant, CONF_TYPE_INT, CONF_RANGE, 1, 50, NULL},
- {"frameref", &frame_ref, CONF_TYPE_INT, CONF_RANGE, 1, 16, NULL},
- {"keyint", &keyint_max, CONF_TYPE_INT, CONF_RANGE, 1, 24000000, NULL},
- {"keyint_min", &keyint_min, CONF_TYPE_INT, CONF_RANGE, 1, 24000000, NULL},
- {"scenecut", &scenecut_threshold, CONF_TYPE_INT, CONF_RANGE, -1, 100, NULL},
- {"bframes", &bframe, CONF_TYPE_INT, CONF_RANGE, 0, 16, NULL},
- {"b_adapt", &bframe_adaptive, CONF_TYPE_FLAG, 0, 0, 1, NULL},
- {"nob_adapt", &bframe_adaptive, CONF_TYPE_FLAG, 0, 1, 0, NULL},
- {"b_bias", &bframe_bias, CONF_TYPE_INT, CONF_RANGE, -100, 100, NULL},
- {"b_pyramid", &bframe_pyramid, CONF_TYPE_FLAG, 0, 0, 1, NULL},
- {"nob_pyramid", &bframe_pyramid, CONF_TYPE_FLAG, 0, 1, 0, NULL},
- {"deblock", &deblock, CONF_TYPE_FLAG, 0, 0, 1, NULL},
- {"nodeblock", &deblock, CONF_TYPE_FLAG, 0, 1, 0, NULL},
- {"deblockalpha", &deblockalpha, CONF_TYPE_INT, CONF_RANGE, -6, 6, NULL},
- {"deblockbeta", &deblockbeta, CONF_TYPE_INT, CONF_RANGE, -6, 6, NULL},
- {"cabac", &cabac, CONF_TYPE_FLAG, 0, 0, 1, NULL},
- {"nocabac", &cabac, CONF_TYPE_FLAG, 0, 1, 0, NULL},
- {"4x4mv", &p4x4mv, CONF_TYPE_FLAG, 0, 0, 1, NULL},
- {"no4x4mv", &p4x4mv, CONF_TYPE_FLAG, 0, 1, 0, NULL},
- {"8x8mv", &p8x8mv, CONF_TYPE_FLAG, 0, 0, 1, NULL},
- {"no8x8mv", &p8x8mv, CONF_TYPE_FLAG, 0, 1, 0, NULL},
- {"b8x8mv", &b8x8mv, CONF_TYPE_FLAG, 0, 0, 1, NULL},
- {"nob8x8mv", &b8x8mv, CONF_TYPE_FLAG, 0, 1, 0, NULL},
- {"i4x4", &i4x4, CONF_TYPE_FLAG, 0, 0, 1, NULL},
- {"noi4x4", &i4x4, CONF_TYPE_FLAG, 0, 0, 0, NULL},
- {"i8x8", &i8x8, CONF_TYPE_FLAG, 0, 0, 1, NULL},
- {"noi8x8", &i8x8, CONF_TYPE_FLAG, 0, 0, 0, NULL},
- {"8x8dct", &dct8, CONF_TYPE_FLAG, 0, 0, 1, NULL},
- {"no8x8dct", &dct8, CONF_TYPE_FLAG, 0, 0, 0, NULL},
- {"direct_pred", &direct_pred, CONF_TYPE_INT, CONF_RANGE, 0, 3, NULL},
- {"weight_b", &weight_b, CONF_TYPE_FLAG, 0, 0, 1, NULL},
- {"noweight_b", &weight_b, CONF_TYPE_FLAG, 0, 1, 0, NULL},
- {"bime", &bidir_me, CONF_TYPE_FLAG, 0, 0, 1, NULL},
- {"nobime", &bidir_me, CONF_TYPE_FLAG, 0, 0, 0, NULL},
- {"chroma_me", &chroma_me, CONF_TYPE_FLAG, 0, 0, 1, NULL},
- {"nochroma_me", &chroma_me, CONF_TYPE_FLAG, 0, 1, 0, NULL},
- {"mixed_refs", &mixed_references, CONF_TYPE_FLAG, 0, 0, 1, NULL},
- {"nomixed_refs", &mixed_references, CONF_TYPE_FLAG, 0, 1, 0, NULL},
- {"chroma_qp_offset", &chroma_qp_offset, CONF_TYPE_INT, CONF_RANGE, -12, 12, NULL},
- {"ip_factor", &ip_factor, CONF_TYPE_FLOAT, CONF_RANGE, -10.0, 10.0, NULL},
- {"pb_factor", &pb_factor, CONF_TYPE_FLOAT, CONF_RANGE, -10.0, 10.0, NULL},
- {"ratetol", &ratetol, CONF_TYPE_FLOAT, CONF_RANGE, 0.1, 100.0, NULL},
- {"vbv_maxrate", &vbv_maxrate, CONF_TYPE_INT, CONF_RANGE, 0, 24000000, NULL},
- {"vbv_bufsize", &vbv_bufsize, CONF_TYPE_INT, CONF_RANGE, 0, 24000000, NULL},
- {"vbv_init", &vbv_init, CONF_TYPE_FLOAT, CONF_RANGE, 0.0, 1.0, NULL},
- {"qp_min", &qp_min, CONF_TYPE_INT, CONF_RANGE, 1, 51, NULL},
- {"qp_max", &qp_max, CONF_TYPE_INT, CONF_RANGE, 1, 51, NULL},
- {"qp_step", &qp_step, CONF_TYPE_INT, CONF_RANGE, 1, 50, NULL},
- {"pass", &pass, CONF_TYPE_INT, CONF_RANGE, 1, 3, NULL},
- {"rc_eq", &rc_eq, CONF_TYPE_STRING, 0, 0, 0, NULL},
- {"cqm", &cqm, CONF_TYPE_STRING, 0, 0, 0, NULL},
- {"cqm4iy", &cqm4iy, CONF_TYPE_STRING, 0, 0, 0, NULL},
- {"cqm4ic", &cqm4ic, CONF_TYPE_STRING, 0, 0, 0, NULL},
- {"cqm4py", &cqm4py, CONF_TYPE_STRING, 0, 0, 0, NULL},
- {"cqm4pc", &cqm4pc, CONF_TYPE_STRING, 0, 0, 0, NULL},
- {"cqm8iy", &cqm8iy, CONF_TYPE_STRING, 0, 0, 0, NULL},
- {"cqm8py", &cqm8py, CONF_TYPE_STRING, 0, 0, 0, NULL},
- {"qcomp", &qcomp, CONF_TYPE_FLOAT, CONF_RANGE, 0, 1, NULL},
- {"qblur", &qblur, CONF_TYPE_FLOAT, CONF_RANGE, 0, 99, NULL},
- {"cplx_blur", &complexity_blur, CONF_TYPE_FLOAT, CONF_RANGE, 0, 999, NULL},
- {"zones", &zones, CONF_TYPE_STRING, 0, 0, 0, NULL},
- {"subq", &subq, CONF_TYPE_INT, CONF_RANGE, 1, 7, NULL},
- {"brdo", &bframe_rdo, CONF_TYPE_FLAG, 0, 0, 1, NULL},
- {"nobrdo", &bframe_rdo, CONF_TYPE_FLAG, 0, 0, 0, NULL},
- {"me", &me_method, CONF_TYPE_INT, CONF_RANGE, 1, 4, NULL},
- {"me_range", &me_range, CONF_TYPE_INT, CONF_RANGE, 4, 64, NULL},
- {"trellis", &trellis, CONF_TYPE_INT, CONF_RANGE, 0, 2, NULL},
- {"fast_pskip", &fast_pskip, CONF_TYPE_FLAG, 0, 0, 1, NULL},
- {"nofast_pskip", &fast_pskip, CONF_TYPE_FLAG, 0, 0, 0, NULL},
- {"dct_decimate", &dct_decimate, CONF_TYPE_FLAG, 0, 0, 1, NULL},
- {"nodct_decimate", &dct_decimate, CONF_TYPE_FLAG, 0, 0, 0, NULL},
- {"nr", &noise_reduction, CONF_TYPE_INT, CONF_RANGE, 0, 100000, NULL},
- {"level_idc", &level_idc, CONF_TYPE_INT, CONF_RANGE, 10, 51, NULL},
- {"threads", &threads, CONF_TYPE_INT, CONF_RANGE, 1, 4, NULL},
- {"psnr", &psnr, CONF_TYPE_FLAG, 0, 0, 1, NULL},
- {"nopsnr", &psnr, CONF_TYPE_FLAG, 0, 1, 0, NULL},
- {"log", &log_level, CONF_TYPE_INT, CONF_RANGE, -1, 3, NULL},
- {"turbo", &turbo, CONF_TYPE_INT, CONF_RANGE, 0, 2, NULL},
- {"visualize", &visualize, CONF_TYPE_FLAG, 0, 0, 1, NULL},
- {"novisualize", &visualize, CONF_TYPE_FLAG, 0, 1, 0, NULL},
- {"global", &globalheader, CONF_TYPE_FLAG, 0, 0, 1, NULL},
- {"noglobal", &globalheader, CONF_TYPE_FLAG, 0, 1, 0, NULL},
- {NULL, NULL, 0, 0, 0, 0, NULL}
-};
-
-static int parse_cqm(const char *str, uint8_t *cqm, int length,
- h264_module_t *mod, const char *matrix_name) {
- int i;
- if (!str) return 0;
- for (i = 0; i < length; i++) {
- long coef = strtol(str, &str, 0);
- if (coef < 1 || coef > 255 || str[0] != ((i + 1 == length)?0:',')) {
- mp_msg( MSGT_MENCODER, MSGL_ERR, "x264: Invalid entry in cqm%s at position %d.\n", matrix_name, i+1 );
- return -1;
- }
- cqm[i] = coef;
- str = &str[1];
- }
- mod->param.i_cqm_preset = X264_CQM_CUSTOM;
- return 0;
-}
-
static int encode_nals(uint8_t *buf, int size, x264_nal_t *nals, int nnal){
uint8_t *p = buf;
int i;
@@ -251,141 +82,51 @@
mod->mux->aspect = (float)d_width/d_height;
x264_param_default(&mod->param);
- mod->param.i_frame_reference = frame_ref;
- mod->param.i_keyint_max = keyint_max;
- mod->param.i_keyint_min = keyint_min;
- mod->param.i_scenecut_threshold = scenecut_threshold;
- mod->param.i_bframe = bframe;
- mod->param.b_bframe_adaptive = bframe_adaptive;
- mod->param.i_bframe_bias = bframe_bias;
- mod->param.b_bframe_pyramid = bframe_pyramid;
- mod->param.b_deblocking_filter = deblock;
- mod->param.i_deblocking_filter_alphac0 = deblockalpha;
- mod->param.i_deblocking_filter_beta = deblockbeta;
- mod->param.b_cabac = cabac;
- mod->param.rc.i_rc_method = X264_RC_CQP;
- mod->param.rc.i_qp_constant = qp_constant;
- if(rf_constant > 0)
- mod->param.rc.i_rc_method = X264_RC_CRF;
- mod->param.rc.i_rf_constant = rf_constant;
- if(qp_min > qp_constant)
- qp_min = qp_constant;
- if(qp_max < qp_constant)
- qp_max = qp_constant;
- mod->param.rc.i_qp_min = qp_min;
- mod->param.rc.i_qp_max = qp_max;
- mod->param.rc.i_qp_step = qp_step;
- mod->param.rc.psz_rc_eq = rc_eq;
- mod->param.rc.f_qcompress = qcomp;
- mod->param.rc.f_qblur = qblur;
- mod->param.rc.f_complexity_blur = complexity_blur;
- mod->param.analyse.i_subpel_refine = subq;
- mod->param.rc.psz_stat_out = passtmpfile;
- mod->param.rc.psz_stat_in = passtmpfile;
- if((pass & 2) && bitrate <= 0)
- {
- mp_msg(MSGT_MENCODER, MSGL_ERR,
- "2 pass encoding enabled, but no bitrate specified.\n");
- return 0;
- }
- if(bitrate > 0) {
- if((vbv_maxrate > 0) != (vbv_bufsize > 0)) {
- mp_msg(MSGT_MENCODER, MSGL_ERR,
- "VBV requires both vbv_maxrate and vbv_bufsize.\n");
- return 0;
- }
- mod->param.rc.i_rc_method = X264_RC_ABR;
- mod->param.rc.i_bitrate = bitrate;
- mod->param.rc.f_rate_tolerance = ratetol;
- mod->param.rc.i_vbv_max_bitrate = vbv_maxrate;
- mod->param.rc.i_vbv_buffer_size = vbv_bufsize;
- mod->param.rc.f_vbv_buffer_init = vbv_init;
- }
- mod->param.rc.f_ip_factor = ip_factor;
- mod->param.rc.f_pb_factor = pb_factor;
- mod->param.rc.psz_zones = zones;
- switch(me_method) {
- case 1: mod->param.analyse.i_me_method = X264_ME_DIA; break;
- case 2: mod->param.analyse.i_me_method = X264_ME_HEX; break;
- case 3: mod->param.analyse.i_me_method = X264_ME_UMH; break;
- case 4: mod->param.analyse.i_me_method = X264_ME_ESA; break;
- }
- mod->param.analyse.inter = 0;
- if(p4x4mv) mod->param.analyse.inter |= X264_ANALYSE_PSUB8x8;
- if(p8x8mv) mod->param.analyse.inter |= X264_ANALYSE_PSUB16x16;
- if(b8x8mv) mod->param.analyse.inter |= X264_ANALYSE_BSUB16x16;
- if(i4x4) mod->param.analyse.inter |= X264_ANALYSE_I4x4;
- if(i8x8) mod->param.analyse.inter |= X264_ANALYSE_I8x8;
- mod->param.analyse.b_transform_8x8 = dct8;
- mod->param.analyse.i_direct_mv_pred = direct_pred;
- mod->param.analyse.b_weighted_bipred = weight_b;
- mod->param.analyse.i_chroma_qp_offset = chroma_qp_offset;
- mod->param.analyse.b_bidir_me = bidir_me;
- mod->param.analyse.b_chroma_me = chroma_me;
- mod->param.analyse.b_mixed_references = mixed_references;
- mod->param.analyse.i_trellis = trellis;
- mod->param.analyse.b_fast_pskip = fast_pskip;
- mod->param.analyse.b_dct_decimate = dct_decimate;
- mod->param.analyse.i_noise_reduction = noise_reduction;
- mod->param.analyse.b_bframe_rdo = bframe_rdo;
-
mod->param.i_width = width;
mod->param.i_height = height;
mod->param.i_fps_num = mod->mux->h.dwRate;
mod->param.i_fps_den = mod->mux->h.dwScale;
- mod->param.i_level_idc = level_idc;
- mod->param.analyse.b_psnr = psnr;
- mod->param.i_log_level = log_level;
- mod->param.b_visualize = visualize;
mod->param.vui.i_sar_width = d_width*height;
mod->param.vui.i_sar_height = d_height*width;
- mod->param.i_threads = threads;
- if(globalheader) mod->param.b_repeat_headers = 0;
- if(cqm != NULL)
- {
- if( !strcmp(cqm, "flat") )
- mod->param.i_cqm_preset = X264_CQM_FLAT;
- else if( !strcmp(cqm, "jvt") )
- mod->param.i_cqm_preset = X264_CQM_JVT;
- else
- {
- FILE *cqm_test;
- cqm_test = fopen( cqm, "rb" );
- if( cqm_test )
- {
- mod->param.i_cqm_preset = X264_CQM_CUSTOM;
- mod->param.psz_cqm_file = cqm;
- fclose( cqm_test );
- }
- else
- {
- mp_msg( MSGT_MENCODER, MSGL_ERR, "x264: CQM file failed to open.\n" );
- return 0;
- }
+ while(*x264encopts) {
+ char *name = x264encopts;
+ char *value;
+ int ret;
+
+ x264encopts += strcspn(x264encopts, ":");
+ if(*x264encopts) {
+ *x264encopts = 0;
+ x264encopts++;
}
- }
- if( (parse_cqm(cqm4iy, mod->param.cqm_4iy, 16, mod, "4iy") < 0) ||
- (parse_cqm(cqm4ic, mod->param.cqm_4ic, 16, mod, "4ic") < 0) ||
- (parse_cqm(cqm4py, mod->param.cqm_4py, 16, mod, "4py") < 0) ||
- (parse_cqm(cqm4pc, mod->param.cqm_4pc, 16, mod, "4pc") < 0) ||
- (parse_cqm(cqm8iy, mod->param.cqm_8iy, 64, mod, "8iy") < 0) ||
- (parse_cqm(cqm8py, mod->param.cqm_8py, 64, mod, "8py") < 0) )
- return 0;
+ value = strchr( name, '=' );
+ if(value) {
+ *value = 0;
+ value++;
+ }
- switch(pass) {
- case 0:
- mod->param.rc.b_stat_write = 0;
- mod->param.rc.b_stat_read = 0;
- break;
- case 1:
+ if(!strcmp(name, "turbo")) {
+ turbo = atoi(value);
+ continue;
+ }
+
+ ret = x264_param_parse(&mod->param, name, value);
+ if(ret == X264_PARAM_BAD_NAME)
+ mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Option x264encopts: Unknown suboption %s\n", name);
+ if(ret == X264_PARAM_BAD_VALUE)
+ mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Option x264encopts: Bad argument %s=%s\n", name, value ? value : "(null)");
+ if(ret)
+ return 0;
+ }
+
+ if(mod->param.rc.b_stat_write) {
/* Adjust or disable some flags to gain speed in the first pass */
if(turbo == 1)
{
- mod->param.i_frame_reference = ( frame_ref + 1 ) >> 1;
- mod->param.analyse.i_subpel_refine = max( min( 3, subq - 1 ), 1 );
+ mod->param.i_frame_reference = ( mod->param.i_frame_reference + 1 ) >> 1;
+ mod->param.analyse.i_subpel_refine = max( min( 3, mod->param.analyse.i_subpel_refine - 1 ), 1 );
mod->param.analyse.inter &= ( ~X264_ANALYSE_PSUB8x8 );
mod->param.analyse.inter &= ( ~X264_ANALYSE_BSUB16x16 );
mod->param.analyse.i_trellis = 0;
@@ -400,22 +141,8 @@
mod->param.analyse.b_weighted_bipred = 0;
mod->param.analyse.i_trellis = 0;
}
- mod->param.rc.b_stat_write = 1;
- mod->param.rc.b_stat_read = 0;
- break;
- case 2:
- mod->param.rc.b_stat_write = 0;
- mod->param.rc.b_stat_read = 1;
- break;
- case 3:
- mod->param.rc.b_stat_write = 1;
- mod->param.rc.b_stat_read = 1;
- break;
}
- if(me_method >= 3)
- mod->param.analyse.i_me_range = me_range;
-
switch(outfmt) {
case IMGFMT_I420:
mod->param.i_csp = X264_CSP_I420;
@@ -460,7 +187,7 @@
return 0;
}
- if(globalheader){
+ if(!mod->param.b_repeat_headers){
uint8_t *extradata;
x264_nal_t *nal;
int extradata_size, nnal, i, s = 0;
@@ -489,9 +216,10 @@
static int control(struct vf_instance_s* vf, int request, void *data)
{
+ h264_module_t *mod=(h264_module_t*)vf->priv;
switch(request){
case VFCTRL_FLUSH_FRAMES:
- if(bframe)
+ if(mod->param.i_bframe)
while(encode_frame(vf, NULL) > 0);
return CONTROL_TRUE;
default:
@@ -557,7 +285,8 @@
if(i_size>0) {
int keyframe = (pic_out.i_type == X264_TYPE_IDR) ||
(pic_out.i_type == X264_TYPE_I
- && frame_ref == 1 && !bframe);
+ && mod->param.i_frame_reference == 1
+ && !mod->param.i_bframe);
muxer_write_chunk(mod->mux, i_size, keyframe?0x10:0, MP_NOPTS_VALUE, MP_NOPTS_VALUE);
}
else
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