diff --git a/libavcodec/libx264.c b/libavcodec/libx264.c index e5fac00469..17cae713ef 100644 --- a/libavcodec/libx264.c +++ b/libavcodec/libx264.c @@ -19,6 +19,7 @@ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ +#include "libavutil/opt.h" #include "avcodec.h" #include #include @@ -27,12 +28,17 @@ #include typedef struct X264Context { + AVClass *class; x264_param_t params; x264_t *enc; x264_picture_t pic; uint8_t *sei; int sei_size; AVFrame out_pic; + char *preset; + char *tune; + char *profile; + int fastfirstpass; } X264Context; static void X264_log(void *p, int level, const char *fmt, va_list args) @@ -163,32 +169,7 @@ static av_cold int X264_init(AVCodecContext *avctx) x4->sei_size = 0; x264_param_default(&x4->params); - x4->params.pf_log = X264_log; - x4->params.p_log_private = avctx; - x4->params.i_keyint_max = avctx->gop_size; - x4->params.b_intra_refresh = avctx->flags2 & CODEC_FLAG2_INTRA_REFRESH; - x4->params.rc.i_bitrate = avctx->bit_rate / 1000; - x4->params.rc.i_vbv_buffer_size = avctx->rc_buffer_size / 1000; - x4->params.rc.i_vbv_max_bitrate = avctx->rc_max_rate / 1000; - x4->params.rc.b_stat_write = avctx->flags & CODEC_FLAG_PASS1; - if (avctx->flags & CODEC_FLAG_PASS2) { - x4->params.rc.b_stat_read = 1; - } else { - if (avctx->crf) { - x4->params.rc.i_rc_method = X264_RC_CRF; - x4->params.rc.f_rf_constant = avctx->crf; - x4->params.rc.f_rf_constant_max = avctx->crf_max; - } else if (avctx->cqp > -1) { - x4->params.rc.i_rc_method = X264_RC_CQP; - x4->params.rc.i_qp_constant = avctx->cqp; - } - } - - // if neither crf nor cqp modes are selected we have to enable the RC - // we do it this way because we cannot check if the bitrate has been set - if (!(avctx->crf || (avctx->cqp > -1))) - x4->params.rc.i_rc_method = X264_RC_ABR; x4->params.i_bframe = avctx->max_b_frames; x4->params.b_cabac = avctx->coder_type == FF_CODER_TYPE_AC; @@ -217,13 +198,6 @@ static av_cold int X264_init(AVCodecContext *avctx) x4->params.i_frame_reference = avctx->refs; - x4->params.i_width = avctx->width; - x4->params.i_height = avctx->height; - x4->params.vui.i_sar_width = avctx->sample_aspect_ratio.num; - x4->params.vui.i_sar_height = avctx->sample_aspect_ratio.den; - x4->params.i_fps_num = x4->params.i_timebase_den = avctx->time_base.den; - x4->params.i_fps_den = x4->params.i_timebase_num = avctx->time_base.num; - x4->params.analyse.inter = 0; if (avctx->partitions) { if (avctx->partitions & X264_PART_I4X4) @@ -277,6 +251,39 @@ static av_cold int X264_init(AVCodecContext *avctx) if (avctx->level > 0) x4->params.i_level_idc = avctx->level; + if (x4->preset || x4->tune) + if (x264_param_default_preset(&x4->params, x4->preset, x4->tune) < 0) { + av_log(avctx, AV_LOG_ERROR, "Error setting preset/tune %s/%s.\n", x4->preset, x4->tune); + return AVERROR(EINVAL); + } + + x4->params.pf_log = X264_log; + x4->params.p_log_private = avctx; + x4->params.i_log_level = X264_LOG_DEBUG; + + x4->params.b_intra_refresh = avctx->flags2 & CODEC_FLAG2_INTRA_REFRESH; + x4->params.rc.i_bitrate = avctx->bit_rate / 1000; + x4->params.rc.i_vbv_buffer_size = avctx->rc_buffer_size / 1000; + x4->params.rc.i_vbv_max_bitrate = avctx->rc_max_rate / 1000; + x4->params.rc.b_stat_write = avctx->flags & CODEC_FLAG_PASS1; + if (avctx->flags & CODEC_FLAG_PASS2) { + x4->params.rc.b_stat_read = 1; + } else { + if (avctx->crf) { + x4->params.rc.i_rc_method = X264_RC_CRF; + x4->params.rc.f_rf_constant = avctx->crf; + x4->params.rc.f_rf_constant_max = avctx->crf_max; + } else if (avctx->cqp > -1) { + x4->params.rc.i_rc_method = X264_RC_CQP; + x4->params.rc.i_qp_constant = avctx->cqp; + } + } + + // if neither crf nor cqp modes are selected we have to enable the RC + // we do it this way because we cannot check if the bitrate has been set + if (!(avctx->crf || (avctx->cqp > -1))) + x4->params.rc.i_rc_method = X264_RC_ABR; + if (avctx->rc_buffer_size && avctx->rc_initial_buffer_occupancy && (avctx->rc_initial_buffer_occupancy <= avctx->rc_buffer_size)) { x4->params.rc.f_vbv_buffer_init = @@ -288,9 +295,24 @@ static av_cold int X264_init(AVCodecContext *avctx) x4->params.rc.f_pb_factor = avctx->b_quant_factor; x4->params.analyse.i_chroma_qp_offset = avctx->chromaoffset; + if (x4->fastfirstpass) + x264_param_apply_fastfirstpass(&x4->params); + + if (x4->profile) + if (x264_param_apply_profile(&x4->params, x4->profile) < 0) { + av_log(avctx, AV_LOG_ERROR, "Error setting profile %s.\n", x4->profile); + return AVERROR(EINVAL); + } + + x4->params.i_width = avctx->width; + x4->params.i_height = avctx->height; + x4->params.vui.i_sar_width = avctx->sample_aspect_ratio.num; + x4->params.vui.i_sar_height = avctx->sample_aspect_ratio.den; + x4->params.i_fps_num = x4->params.i_timebase_den = avctx->time_base.den; + x4->params.i_fps_den = x4->params.i_timebase_num = avctx->time_base.num; + x4->params.analyse.b_psnr = avctx->flags & CODEC_FLAG_PSNR; x4->params.analyse.b_ssim = avctx->flags2 & CODEC_FLAG2_SSIM; - x4->params.i_log_level = X264_LOG_DEBUG; x4->params.b_aud = avctx->flags2 & CODEC_FLAG2_AUD; @@ -307,6 +329,12 @@ static av_cold int X264_init(AVCodecContext *avctx) if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) x4->params.b_repeat_headers = 0; + // update AVCodecContext with x264 parameters + avctx->has_b_frames = x4->params.i_bframe ? + x4->params.i_bframe_pyramid ? 2 : 1 : 0; + avctx->bit_rate = x4->params.rc.i_bitrate*1000; + avctx->crf = x4->params.rc.f_rf_constant; + x4->enc = x264_encoder_open(&x4->params); if (!x4->enc) return -1; @@ -330,6 +358,23 @@ static av_cold int X264_init(AVCodecContext *avctx) return 0; } +#define OFFSET(x) offsetof(X264Context, x) +#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM +static const AVOption options[] = { + { "preset", "Set the encoding preset", OFFSET(preset), FF_OPT_TYPE_STRING, { 0 }, 0, 0, VE}, + { "tune", "Tune the encoding params", OFFSET(tune), FF_OPT_TYPE_STRING, { 0 }, 0, 0, VE}, + { "profile", "Set profile restrictions", OFFSET(profile), FF_OPT_TYPE_STRING, { 0 }, 0, 0, VE}, + { "fastfirstpass", "Use fast settings when encoding first pass", OFFSET(fastfirstpass), FF_OPT_TYPE_INT, { 1 }, 0, 1, VE}, + { NULL }, +}; + +static const AVClass class = { + .class_name = "libx264", + .item_name = av_default_item_name, + .option = options, + .version = LIBAVUTIL_VERSION_INT, +}; + AVCodec ff_libx264_encoder = { .name = "libx264", .type = AVMEDIA_TYPE_VIDEO, @@ -341,4 +386,5 @@ AVCodec ff_libx264_encoder = { .capabilities = CODEC_CAP_DELAY, .pix_fmts = (const enum PixelFormat[]) { PIX_FMT_YUV420P, PIX_FMT_YUVJ420P, PIX_FMT_NONE }, .long_name = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"), + .priv_class = &class, };